Question: When did they start planning a second phase of operations?
About the article "Battle of Midway", section "Background".

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The fundamental aim of Project Topi is to work for the betterment of educational sector of remote areas of the country like Topi.
Therefore, after rescue and relief operations, the executive council of the Project Topi decided to focus on the education of the children of the earth-quake affected areas during the rehabilitation phase.
To start with, Project Topi team assisted Islami Jamiat-e-Taliba in the planning phase of establishing a tent school in Shahooter Balakot on October 28, 2005.
Later on, more tent schools were based by the Project Topi at Thanda Khatta whose planning and financial matters were all dealt by the Project Topi.
Islami Jamiat-Taliba provided their guidance and much-needed help throughout the process.
Consequently, the second tent school at Thanda Khatta started on November 12, 2005 which was named as Umeed School.
After the mid-term examinations, a sixteen member student team went to Balakot with goods and clothing for relief operation in collaboration with Islami Jamiat-e-Taliba.
During this period of mid-term breaks, these students went to the far off regions of Balakot to provide relief goods.
They stayed there till Eid-ul-Fitr.
Project Topi team also assisted Islamic Jamiat-e-Taliba in the planning phase of establishing a tent school in Shahooter, Balakot on October 28, 2005. 
During planning of Line 15, the eastern terminus was moved from Fuqian Jie to the east bank of the Chaobai River.
Construction began on Phase I of Line 15 in Shunyi District in April 11, 2009.
At that time, Phase I of Line 15 was only 31.15 km long with 12 stations.
According to the construction schedule in 2009, the eastern most Shunyi section of Phase I (18.5 km in length with seven stations) would be opened first on December 30, 2011.
The remainder of Phase I would follow in May 2013.
However on October 28, 2009, when track-laying began on Phase I of Line 15, Line 15's construction schedule was revised with Phase I expanded from 31 km and 12 stations to 38 km and 18 stations.
Phase II plans also underwent a revision; Instead of two sections, Phase I would be built and opened in three sections.
The first section of Phase 1, from Wangjing West to Houshayu, opened on December 30, 2010.
The second, from Houshayu to Fengbo, followed at the end of 2011.
Line 15, Phase I stations, from east to west with transfers in parenthesis: Wangjing East station did not open in 2010 due to lack of connections with the surrounding road system.  
At the age of 17, while visiting his father in Pretoria, at the start of the Second Boer War, the Field-Cornet's office said he was too young to fight and refused to enlist him.
He met his father with the President of the Transvaal, Paul Kruger, who took him straight to the room of the Commandant-General Piet Joubert.
Joubert personally handed him a new Mauser carbine and a bandolier of ammunition.
He and one of his brothers then joined the Boer forces ""by virtue of having thrown our belongings through a carriage window and climbing aboard"".
During the initial phase of the War, he fought several battles, including the engagement at Surprise Hill ("Vaalkop") and in the Boer victory at Spionkop.
After a string of Boer defeats in set-piece warfare and the British capture of Pretoria, Reitz was one of the fighters who remained in the field.
He joined General Smuts who decided to conduct guerrilla operations, not in the territories of the Boer republics, but in the Cape Province.
They faced immense difficulties, both from British forces and from nature, and when the majority did break through to the Cape they were on their last legs. 
According to Kimball et al., this phase is the start of the Lifecycle.
It is a planning-phase in which project is a single iteration of the Lifecycle while program is the broader coordination of resources.
When launching a project/program Kimball et al.
suggests following three focus areas:  Define and Scope project  Plan project  Manage project  
The second phase, in planning, is a northern extension of the first phase of Line 10 from New Jiangwan Town to Huandongyi Avenue.
This phase will be completed by 2020.