Originally Posted by marvelrobbins
If Famke Janssen Is indeed In Days of future past that immedetly casts doudt on what has been assumed.Plus her appearance In the Wolverine Is likely a dream and hallunication.
Patrick Stewart has said there Is explanation for his appearance In DOFP he hasn't mentioned the twin brother one.
Magneto was already regaining powers at end of last stand.Likewise the same thing most likely happened to rogue.
The future with sentinles may very well be completly alternate future timeline.
That Is most likely easist explanation for her involvement and needing stunt double.
It was indicated to me a long time ago that the future is alternate and so is the past into which the traveller(s) arrives.
This would mean that correcting the past likely sets up the events of the original trilogy. I'm not entirely sold on that idea, as the original trilogy does not have a happy ending (at least, not for Xavier, Jean, Scott, Mystique).
I'm not entirely certain what they have in mind but if it really does involve Jean and Scott, then it must be an alternate future. This then means they don't have to explain how Xavier survived the events of X3.
I'm also not sure if this means that X-Men: First Class is an alternate timeline or if just the 1973 past in DoFP is an alternate timeline. It's all very confusing.