Debate fuels my Fire
That has me worried. Unless the book is the size of Eberron or bigger it won’t have room for all the lore and crunch you’d need to do Spelljammer justice and have a fleshed out adventure. It would take two or three books to do that.
I own both Ghosts of Saltmarsh and Descent to Avernus, both of which have mechanical rules for ships/vehicles but are primarily adventures. I think a Spelljammer book would be more tilted in page count for mechanics, but can still have a larger adventure than most setting books.
I still want to see Strixhaven's table of contents to see how it balances adventure vs. everything else.