Nah, Rocket is dead. He survived the Snap, he won't survive GotG3. And Gunn has laid the groundwork for Rocket's death since the first film ("what the hell, I don't got that long of a lifespan anyway"). Rocket is marketable, but so was Iron Man. A nine year, five movie history is more than enough to cement Rocket as a staple in other adaptations (cartoons, games, etc).
If I had to put money on it, Gamora, Drax, Mantis and probably Groot live, while Quill, Nebula, and Rocket die. I got my reasons for thinking this, but who cares.
Or maybe nobody dies, who knows? But if there's gonna be deaths, those are my bets.
Good casting for Adam Warlock. With Thanos gone I feel like Warlock is kinda just....there....but it should make for a interesting movie.
Swear to gods, Gunn better set up a Nova solo film with this or I am gonna riot.