Re: Actors from original trilogy on First Class sequel with Days of Future Past
Days of future Past should be viewed not as sequel to First Class but sequel to most X-men films.
For future scenes we know we have Xavier,Magneto,and Wolverine.If Rogue takes Kitty's place that gives us 4.Cyclops and Jean would make It 6.Mystique would make It 7,and then Storm would make It 8.That's enough characters for future part of film.I anticapte them bringing back the characters from first class that survived with Moira as question mark for now.with target of assassination and Rogue(or possibly Wolverine) physically traveling back In time that Is enough characters to focus on.
I consider Jubilee a poor man's Kitty.They have already given Kitty's role with X-man and relationship with Wolverine to Rogue.
Character's like Nightcrawler,Iceman,Colossus,and Pyro from X-Men/X2 may be left out for time and plus they need some characters to be dead In future.If Rogue does take Kitty's role they might use Iceman due to his relationship with Rogue.