Its in the rumors right now that Matt might be coming back for a cameo in season 8 episode 1 to make a phone call to Clara to insure her that this new Doctor is in fact him. Why wouldn't she believe him? I mean come on she saw him change right before her eyes and she's seen all the other ones right. Why the hell would she need convincing? Unless...he doesn't remember his past kinda like 8 did in the 1996 movie that Fox spat out. Post thoughts in comments :D
