Hey! Regarding the Wrath of God page, it got a little derailed after the WIP 1e ship rules kept evolving in development, but I do plan to return to it someday and finish it!
As for your second question: You could use it as a hook for the next session, or possibly as a form of "retirement" for PCs. I don't think it ever came up in my playtesting, but I'd probably leave it to the players. Maybe their characters are canonized as rimspace martyrs, or they want to run a heaven campaign. The latter would certainly take some work from the Warden.
Finaly finished the trilogy last weekend, Meatgrinder was easily the highlight! It came just as I feared, we decided to retire the characters because who in their right mind would try to get out of heaven XD Only thing I missed was a bit of a lore page what actually transpired in hell. But other than that, one of my favorite adventures so far!