User blog comment:Paul.rea/Gage Golightly will not Return to Teen Wolf Season 3/@comment-70.30.60.243-20140106191215/@comment-4753851-20140106211211

Kind of impossible. Peter was able to come back because of 3 things:

1) Power of the one who killed you. Derek.

2) A harbinger of death/banshee. Lydia.

3) And I believe a certain kind of moon.

Based on that Boyd could be brought back. But not Lydia since Kali killed her and Kali is dead.