Originally Posted by BMM
There has always been chatter about possibilities and movies in development, but I don't believe Fox ever "clearly stated" they were going to do a couple of spin-offs and then X-Men 4, as though the past 7 years have all just been part of the plan. The past 7 years have been Fox chasing whatever works, and we still have no idea what is going on with X-Men 4.
They might not even confirmed doing X-Men 4 during that time but there was no reason that FOX wasn't confident with making a X-Men 4 movie that they didn't greenlight it. FOX was confident with the franchise that they were willing to do a couple spin-offs instead of making a direct sequel to Last Stand right away.