This is worse than the time Firelord jobbed to Spider-man, Flash jobbed to Deathstroke, Superman jobbed to Venom and Galactus jobbed to Hulk's bastards combined.
That is not the Sentry. It is clearly the Void disguised as the Sentry and is delusional to the point that he believes he is the Sentry and any attempts to claim he isn't will cause him to lash out.
No they didn't. Collector just sent him back to 616 with a mindwipe and laying in bed to make him think that it was all just a dream.
Considering that was the last page of the issue where he "died," I don't understand how you could have read him dieing but missed the part where he was revealed to be alive.
Lol yeah they were like, we brought Outlaw back for this book and the guy has done the least of all the characters in the book when he was one of the first introduced characters.