Henry signed a three year deal so has over 18 months left. If Robinson is still manager next summer I would expect him to go. Feel free to bookmark that prediction and see if he’s still here when the season starts next August in such circumstances.
Off the top of my head I believe that Shearer, Nelson, Mousinho, Raglan, Long, Hall and Obika are ooc next June. Mousinho might get another year offered if he carries on doing well as holding mid and I’m sure Hall will be offered something if he can get back from his injury, but the rest are as good as gone. Expect Nelson to go to Sunderland on a free while a certain somebody cackles into their scotch.