Funny thing is, this is one of the few events with which Spidey had nothing to do with. He showed up in some of the tie-in Avengers comics in some non speaking parts and that was it. Maybe because it was still Ock in his mind and Hickman doesn't like handling other's continuity.
I am looking forward to Peter Parker being back! Down with Doc Ock. I know some people hated it but it was actually in my opinion a fun read. I always knew Peter Parker would be back. Now if they would put him back with Mary Jane where he belongs.
As far as Kostisfire guesses I would love any of those ones you are guessing at. Come on Cosmic characters!