Re: Actors from original trilogy on First Class sequel with Days of Future Past - Par
Here is what we already know:
1. The Wolverine leads into DOFP.
2. Alternate timelines and time travel will be involved.
From this I think it's fair to deduce that the dystopian future in DOFP will occur after The Wolverine, not as a separate timeline initially, and that by the end of DOFP two timelines will be created.