With the recent twitter announcement from director Bryan Singer that reveals Hugh Jackman's Wolverine will be in the new film, X-men: Days of Future Past, this has further cemented (following the announcements from Patrick Stewart and Ian McKellan) the intention of the filmmakers to place ALL of the x-men films, First Class included, into the same timeline.
I am a fan of the films, but not a FAN in the truest sense, so I have no idea how this will impact the overall arc of the timeline.
As far as I am aware, some quarters are up in arms over this announcement, and my questions are:
What are the major issues with having all of these films placed in one universe?
Has there been any official explanation as to how the filmmakers intend to integrate the loose threads into this new film?
Addendum: There seems to be some confusion about the Professor X character regarding how he ended up in the wheelchair, also the Emma Frost character arc doesn't appear to work across the timeframe, and there also seem to be issues with Woverine's relationship to Sabretooth. These are just a few of the 'issues' raised that I have seen.
Here are some more:
In X-Men, Professor Xavier claims he met Erik Lehnsherr when he was 17, in X-Men: First Class he is considerably older during their first meeting.
In X-Men, Prof X seems confused as to how Magneto has found a way to shield himself from Cerebro, but in X-Men: First Class, Xavier sees Magneto's helmet and knows what it can do.
In X-Men, Prof X says that he and Magneto collaborated on the construction of Cerebro, but in X-Men: First Class, Cerebro was designed by Hank (Beast). The original was constructed by the CIA, and whichever version ends up at the X Mansion is of unknown origin but was definitely built after the Xavier/Magneto split.
In X-Men, we wee a different X Mansion from the one that appears in X-Men: First Class. OK, so they moved. I can relate to that :)
In X-Men, Prof X doesn't seem to remember meeting Wolverine before, though they meet briefly in X-Men: First Class.
In X-Men: First Class, Emma Frost (White Queen) meets and is an adversary of Charles Xavier. In X-Men Origins: Wolverine, she doesn't seem to know him and follows him onto a helicopter without comment or complaint. This one might have been answered below.
In X-Men 3: The Last Stand, Prof X and Magneto are seen visiting the home of Jean Grey to recruit her to the school. This scene presumably takes place many years after the end of X-Men: First Class, where we see the rift between Xavier and Magneto has already taken place.
In X-Men: First Class we see Hank turn into the blue furry Beast as a young man in the year 1963. In X2: X-Men United Dr. Hank McCoy appears in a television interview and he is not blue and furry.