Out of the people who died in Infinity War, who would return for Avengers 4?

Impossible to say.

However, we know a few key facts: Spider-Man has a movie coming out, so Peter Parker will be coming back green arrow and black canary costumes.

That fact suggests the Infinity Stones will be wrested from Thanos, and all those who were disintegrated in te first Infinity War are going to be remade. Because seriously, nobody unmakes Samuel L Jackson for long.

The gauntlet is already damaged, along with a portion of Thanos, and evidence suggests one stone will be handled by a single member of a team (Infinity Watch or Illuminati, likely Illuminati, since Adam Warlock doesn’t yet exist in the MCU) young justice cheshire cosplay.

There are 2 sets of Dead people:

1:Characters who died before the “Snap” like Loki, Heimdall ,Gamora,Vision.

2: Post “ Snapocalypse” deaths like Spiderman, quill,drax,groot, bucky, panther , wanda etc.

I feel the people who died in the first category are dead and will not return .

The category 2 people ,in my opinion, are not dead but actually are either inside the soulstone or have been sent to another dimension by the stone and will be returning in Avengers4 when the core Avengers and capt marvel undo the mess once upon a time costumes for halloween.

Gamora's situation is debatable, it could be that the sacrifice didn't kill her but trapped her inside the soul stone and she too might return .

Some more cosplay costumes would be collected here: www.cosjj.com