It looks like X-Force, Gambit, and Doctor Doom are all shelved.
Out of the three movies, it appears that Gambit and Doctor Doom are completely toast.
Even though X-Force, Doctor Doom, and Gambit appear to be shelved for now, Kevin Feige and crew more than likely already have a plan to get them back into development with their teams.
This makes it certainly seem like the project is dead along with Doctor Doom and Gambit.