Depends on the situation. Your hypothetical states that the world survives whether the game is played or not, so other than personal death/traumatic events to the players everything else is safe. While I personally would want to play for both the escapism and the adventures, I know the people I'd want to play would definitely have some concerns (but would relent eventually). I think the session would have a high likelihood of succeeding. The crew would consist of a Maid of Space, a Mage(?) of Doom(?), Heir of Time, Seer(?) of Mind, a Rougue(?) of Breath, and a Page(?) of Blood(?). So as long as everyone communicates we'd be fine, and seeing we're all late 20's to late 30's we don't have to worry about any teen drama! My only fear is my matesprite being a Doom player and likely having to suffer by watching us all die in some form. (Any ? means I'm classpecting without any confirmation just vibes.)
I'm not going to go through each of their lands (mainly because I haven't finalized them in my noggin yet) and still am working to pin down mine as well. I've been though a couple of renditions as a Maid of Space, but right now its LoHaF (Land of Hollows and Frogs). My kernel will be once prototyped before entry with my Scalemate plush I made (Professor Appletums) to give rise to Appletumsprite. Second prototype will be after entry to avoid giving enemies a buff, it'll be my beloved Sollux, an Eastern Hercules (Dynastes tityus) who is lovingly preserved in ethanol in my freezer :'[. But at least I'll get to talk to him again when I get Sollutumsprite!