Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-25178327-20131105003721/@comment-15314533-20131105020210

No, Jackson stayed like that until he resolved his issues...he was adopted...had no identity...needed Lydia's help with that...you remember...she gave him the key back to his apartment, called him by his first name when he was in kanima form...and presto chango...after Peter and Derek killed him, he manifested his werewolf form...

I might not be explaining it all correctly...however, I am fairly certain that is the concensus.