Board Thread:Spoilers!/@comment-4775130-20150611162216/@comment-1732287-20150918120722

I think he'll still be in it, but I can totally see why he's not "starring" anymore. Still, I think they'll have him back, it's just all about contracts and how much they pay him. Robin wasn't starring in season 4, he was still in over half the episodes.

Plus "This is England '90" is about to air, so it could be possible that they needed to reduce his role due to him filming that.