The season will be adapted for television by David Benioff and D.B. Weiss. Filming officially began on October 23, 2017, and concluded in July 2018. The season is scheduled to premiere during the first half of 2019.

When is game of thrones season 8 released? Let's have some stream of consciousness first.
The relevant sentence in the passage is: The season is scheduled to premiere during the first half of 2019. So, the answer is during the first half of 2019.