If bleedingcool leak is coorect, then Gambit is on flagship X-Men book with Rogue, Wolverine and Kurt!
X-Men by Gail Simone and David Marquez
Sentinels by Alex Paknadel
Young X by Eve Ewing
Cyclops by Jed Mackay and Ryan Stegman
Phoenix by Stephanie Phillips
Wolverine by Saladin Ahmed and Greg Capullo
Mystique by Declan Shalvey