Originally Posted by J.Howlett
You CAN NOT retcon X2. That would be incredibly stupid to retcon that film out of the continuity.
Singer would've lost his mind if he does that.
I don't think you can change history since the First Class era to prevent the DOFP future without erasing a lot of things in between (from the looks of it, the DOFP future is about the same years than the original trilogy and The Wolverine)