as my title said " bring back the heroes " !
1. Avenger : Age of Ultron
quicksilver never should die in the first place . I think quicksilver should brought back like time travel future or past .WE need quicksilver
2. The Suicide Squad aka Task Force X
I have an ideal to bring one of the former member back to became the newest hellspawn , because he's like already suicide(dead) and he is one bad ass butt kicker