Can Avengers return back with their true heroes, Captain America,Iron Man and Black Widow?
This question can be answered no. Marvel can return these characters which I think could boost their next avenger movie but it will cost them a lot in production budget. They will have to make masks for people to play the role of these three avengers, this will just be a loss and therefore it has became solemn that the three first have died. Marvel will now be looking forward for phase 4 of avengers and i bet that new avengers are going to be introduced in this phase also.