All the folks who died in 'the snap' are coming back. That is the nature of the infinity gauntlet, most notably the soul stone and the time stone. The characters that died pre-snap are probably staying dead, though. (Gamora, etc)
In fact I'd say the characters that "died" in the snap are the ones that are really safe long term. What I find interesting is that all of the original Avengers stayed around (except we don't know about Hawkeye yet). I think in next year's movie will reveal who is really staying long term. This is the chance for the original Avengers to either renew their contracts with Marvel or have their characters go out in a blaze of glory.
But, yeah, all the characters that got snapped out, are actually the ones that they are planning phase 4 around: Spidey, Black Panther, Dr. Strange, most of the Guardians. They are all going to have movies in phase 4.