General Question: Realm Progression to WoTLK

[Kenheul]

Hello, I am new and was wondering when will the realm reach the WoTLK expansion from WoW Classic.
I was not able to find a clear cut answer to my question hence this post.

[Edstrom]

November 18th, Phase 0 will start with realm opening and raids closed.
November 25th, Phase 1 will introduce Molten Core, Onyxia’s Lair, Dire Maul, Azuregos, Kazzak.
January 27th, Phase 2 will bring Blackwing Lair and Darkmoon Faire.
February 24th, Phase 3 will add Zul’Gurub and Green Dragons.
March 30th, Phase 3.5 will begin the preparations for the AQ Gates.
April 27th, Phase 4 will unleash Ahn’Qiraj, depending on player progress.
June 29th, Phase 5 will culminate with Naxxrammas.


So i guess it will be approx a year give or take for each expansion