Originally Posted by Mr.M
You either have to make whole sale changes and essentially JJ Abrams it, or you have to barely tweak it. You can't have a tweener that basically contradicts major elements, like Jean survivng at the end of the trilogy. It would completely contradict the climax of the last OT movie and The Wolverine. If Fox wants certain characters back it, they will have to write them back in despite what transpired in the OT. It can be done, but it has to start with DoFP providing some of those answers.
It doesn't have to contradict The Wolverine if Logan still remembers the OT timeline being the time traveler...he could be the only one