Or they could just erase anything not first class.The Wolverine (Flashbacks) > First Class > X-Men Origins > X1 > X2 > X3 > The Wolverine (present) > DoFP (Future)
.................................................. .................................................. ............................................|
.................................................. ........DoFP (Past) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
.................................................. ...............|
.................................................. ...............>>>>> Apocalypse
No idea WHERE Gambit, Deadpool, and Wolverine 3 fall on the new timeline yet.
Of course, it COULD also be:
Earth-10005: The Wolverine (Flashbacks) > X-Men Origins > X1 > X2 > X3 > The Wolverine (present) > Days of Future Past (Present/Future)
.................................................. .................................................. .................................................. ...|
.................................................. .....................<<<<<<<<<<<<<<<<<<<<<<<<<<<<< <<<<<<<<<<<<<<<<<
.................................................. .....................|
Earth-Something:..............First Class > Days of Future Past (Past) > Apocalypse
That would certainly handwave most of the major continuity problems between FC and the rest of the films AND better follow Marvel's time travel rules.