What if the ones who disappeared in Avengers Infinity War where the ones who lived and every one who "stayed" are trapped in the Soul Stone?

Nice theory, but it is the opposite.

Those who have died and are sacrificed (Gamora) are trapped in Soul Stone and the living will need to come up with a plan with the help of Captain Marvel. The theory regarding souls of dead trapped inside Soul Gem is confirmed by Russo brothers - Infinity War Soul Stone Theory Confirmed. injustice 2 joker costumes

The interesting part would be to see if Marvel will decide to revive every single character who has died or only some. Spider-man, Black Panther, Doctor Strange are as good as confirmed as Spider-man has a confirmed sequel, Doctor Strange would be needed for the expanding scale of Marvel Universe, and Black Panther was a huge success - critically and financially.green arrow and black canary costumes

GoTG 3 is also confirmed and many/all/some characters of the team would be revived.

I’m pretty sure this is the route they’re going to take. Some of the characters who were killed earlier in the film I think are gone for good, but the ones who disappeared at the end are either trapped somewhere, or the ones who stayed are trapped somewhere. That’s how they’ll explain being able to bring THEM back but not the Asgardians, etc. black canary costumes

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