Dr strange, Spiderman, guardians of the Galaxy and black panther series of movies are dead.
I'm really sad about it, but holy shit I want to see the next mcu movies more than ever now.
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)