user: Q: Borthwick-Jackson, 19, started his career as a trainee at United and has made 14 senior appearances.
Netherlands international John, 24, has been with the Portuguese side since leaving Dutch club FC Twente in 2012 and was on loan at Reading last season.
He previously played for German Bundesliga side Hamburg in 2014.
Former England Under-19 international Borthwick-Jackson made his Premier League debut last season.
"My aim is to play as many games as I can, gain experience and go back and challenge for a place in the team because Jose Mourinho has told me I've got a future there," Borthwick-Jackson told BBC WM.
"I had interest from Premier League clubs and other Championship clubs but I wanted to come here and help the club get back to where they belong, which is the Premier League."
Both players could make their Wolves debuts in Tuesday's EFL Cup second-round tie against Cambridge United.
Find all the latest football transfers on our dedicated page.

A: Wolverhampton Wanderers have signed Manchester United defender Cameron Borthwick-Jackson and Benfica forward Ola John on season-long loan deals.


Text: The analysis, from campaign group Forest Trends, says that large corporations are using legitimate development permits to illegally clear land.
Around 2,000 sq km of forests are being lost every year, they say.
Effective governance of the forests in Cambodia has broken down, they argue.
Forests have long been a big issue of concern in Cambodia and across south east Asia.
In the 1990s, timber concessions were granted by the government and a rapid deforestation ensued, so much so that by 2005 the country had the third highest rate in the world.
Protests from the international community forced the Cambodian government to act and logging permits were significantly restricted.
But environmental campaigners say that the felling of trees in large numbers has continued by different means.
In their latest report, Forest Trends say that the government has in recent years granted what are termed Economic Land Concessions (ELC) to large agri-business companies who want to develop the land.
Under the guise of creating a rubber plantation for instance, the trees are cleared and exported. On many occasions the plantations never materialise.
According to the study around 14% of Cambodia has been allocated to domestic and foreign corporations for development. Around 80% of that land is in protected parks and forests.
The report says that about 1.1 million hectares of concession areas were awarded to purported rubber plantations, compared with 150,000 for sugar and about 100,000 for pulp and paper.
"This is illegal by Cambodia's own laws and regulations," Kerstin Canby from Forest Trends told BBC News.
"If my interests are just to get the timber out, I would go to the Ministry of Agriculture get an ELC and clear cut the entire forest and then I can state that I am going to plant something, but who's going to punish me if I don't?"
The researchers have used data from the government along with images of over 32,000 forest fires from Nasa satellites in 2012-13.
This showed that carbon emissions from evergreen forests cut down in concession areas are almost ten times greater than those outside, confirming that it is the oldest and most valuable trees that are being targeted.
The authors say that most of the timber is exported to Vietnam and China - some of it may end up being sold to other parts of the world.
"We are basically setting up these 'cancer cells' in the best forest areas and this is getting out of hand, the whole rule of law in the sector is melting away," Marcus Hardtke, an expert on forest issues in Cambodia told BBC News.
"What happens is that the companies set up sawmills within the concession areas, but they basically go outside and grab everything and buy from other areas, they bring it into the concession and they launder it via the concession - this can go on for 2 or 3 years, they clean out the whole area."
As part of global climate talks, the UN has been promoting the idea of REDD+, the reduction of emissions from deforestation and forest degradation.
Under this programme developing countries, like Cambodia, can get financial support from donors to keep their forests and the carbon they store, intact.
But the REDD+ programme is seen as ineffective in preventing the corruption and lack of legal capacity that Forest Trends say is widespread in Cambodia.
"They have websites and newsletters but it is all irrelevant," said Marcus Hardtke.
"The house is burning but they are discussing the colour of the curtains."
Follow Matt on Twitter @mattmcgrathbbc.
summary: Ancient, highly valuable forests are being lost at an "unprecedented" rate from protected lands in Cambodia, according to a new report.


Q: The five men "should not roam scot-free as they are dangerous to society", she told the BBC.
Police have arrested three of the five accused.
The 21-year-old student had been pursuing a case in court against the men, when she was attacked and left for dead in Haryana state last week.
She said she was forced inside a car and the men tried to strangle her. A passerby later took her to hospital.
The woman, who is from a poor low-caste Dalit (formerly known as untouchables) family, was first assaulted in 2013 in Bhiwani town.
Her family has alleged that they had moved to Rohtak after they were threatened by the accused who have been out on bail.
Speaking to the BBC from her hospital bed, where she is recovering from her injuries, the woman said the five were the same men who had gang raped her in 2013.
"These people gang-raped me in 2013. This time too, they're the accused," she said.
"I know them very well. I only want justice. They should be hanged.  It's not just only about me or anybody else's daughter. These people are dangerous," she said.
Though she could not speak much due to health complications, her cousin said the victim's family "do not have faith" in the local police.
"It took police seven days to arrest three of the five men identified by my sister. The accused were all roaming about here. We pleaded before the police. But their bias was obvious. We are being victimised because we are from a lower caste," he told the BBC.
He said his family embraced Buddhism last year after being fed up of "caste discrimination".
The victim's family has also alleged that the accused offered them money to withdraw the 2013 gang rape case. "When we refused the money, we were threatened," he said.
The arrested men have been remanded to custody by a local court.
The state government has also announced setting up of a Special Investigation Team (SIT) to probe the incident. The team is led by two senior police officials and includes forensic experts.
Police official Mohammed Akil said the accused have handed over some CCTV footage claiming that they were at different places when the incident took place.
"The matter is complicated and there are many aspects that have to be taken into consideration during the investigation. The SIT will do its job," Mr Akil told the BBC.
The DNA samples of the accused were being sent for examination, he said.
Family members of the arrested men, however, alleged that they were being "falsely implicated" in the case.
They accused the victim's family of "demanding money" to withdraw the case.
Garima, wife of one of the accused, said her husband Sandeep was in a different city on the day the incident was said to have taken place.
Harbans, brother of accused Jagmohan, told the BBC that they had handed over evidence to the police to prove that his brother was "several kilometres away from the place of the incident".
Police officials say that the matter has become complicated and only a thorough investigation will establish what actually happened.
Nearly four years ago, a 23-year-old woman was brutally raped by multiple men and murdered on a bus in Delhi, causing global outrage.
Tougher laws on sexual violence were introduced the year after, including a new death sentence if a person was convicted of rape a second time.
But correspondents in India say questions are being asked about how five men who were accused of a serious sexual crime could have been free to conduct another attack.

A:

assistant: A woman in India who was allegedly gang raped for the second time in three years by the same men says she wants "stringent action" against the accused.