With the buzz that the OT cast are getting just from appearing in Days of Future Past, Fox would likely to bring them back most especially if DOFP ends up grossing more than $500 million worldwide.
X-MEN RI5E' MUTANT OF THE MONTH | PROFESSOR X | PORTRAYED BY PATRICK STEWART
"Every few hundred millenia evolution leaps forward." - X1
"Sharing the world has never been humanity's defining attribute." - X2
"Will you control that power or let it control you?" - X3
"Is the future truly set?" - X4