Days of Future Past Definitive answer as to the chronology/continuity for the series?

[DigificWriter]

I should know more after I'm able to see DoFP tonight on HBO, but, as I said, it's clear that Singer pulled a Star Trek 2009. What is apparently less clear is whether or not it was his intention to completely invalidate the previous films in the process.

 

[Mutant 77]

I should know more after I'm able to see DoFP tonight on HBO, but, as I said, it's clear that Singer pulled a Star Trek 2009. What is apparently less clear is whether or not it was his intention to completely invalidate the previous films in the process.

Intention or not, it's not like Star Trek 2009. In the Trek multiuniverse, the original timeline still exists.

 

[CyclopsSummers]

Original/Unaltered Timeline:

First Class
XO: Wolverine
X1
X2
X3
The Wolverine
DOFP.

Loose continuity, but this is more or less the correct order.

Altered timeline:

First Class
DOFP
Apocalypse.

Basically, the time-traveling aspect of DOFP has changed the course of history and altered the timeline. Due to time-travel, Apocalypse awakens much earlier than he should have/would have in the Original/Unaltered timeline.

And now, the original timeline exists...but only in Wolverine's consciousness. No one else has any knowledge of what actually came before or the unaltered timeline.

Yes, only in Wolverine2023's consciousness :

when Logan left his body of 1973, Logan 1973 completely ignores previous events (adventures with Xavier, Beast, Peter, Magneto ...) and will join the x-men until 2023 where he will wake up in his room, remembering events from original timeline, forgetting events of new timeline since he was found by Mystique (1973).

I'm not sure that answers the question, but there are two other things:

1. Apocalypse appearing (for the first time in the 20th century?) is assumed to be a result of the X-Men changing the past - like the concept of "course-correction" from Lost. They avoided an apocalyptic future but caused another apocalypse to come about sooner, because their fate is inevitable.

If Apocalypse appears in new timeline, they will have to explain that. He doesnt wake up in original timeline like Majin Buu doesnt wake up in alternate reality "Story of Trunks" due to the death of Goku and others saiyans