An adventure setting spanning the infinite realities of the world’s greatest roleplaying game
It looks like this will also follow the template of the Spelljammer books, with some player options, setting information, and DM facing content (adventure & creature statblocks).
Having played Planescape: Torment for the first time back in 2018, I've been wanting to run a game based in Sigil since then. Currently resisting the urge to pre-order rn, ugh.
Resist the urge to preorder. The book isn't going to give you enough information about Sigil to run anything. If you want to spend your money well go into the DM's Guild and pick up the 2nd edition PDFs of "The Cage" and the planescape boxed set instead.
Is there any down side to wait for reviews of the books contents?
While this theme heavily Interests me, the last Releases of WotC have Not been too great in quality