Thank for the heads up regarding Kingdom of Ghouls Rip. Yes indeed I do, though not just the venues but the NPCs as well. Seems both the NPC and venues databases will require some updating. Now I just need to try and get access to the pages concerning Sigil so that I can pour over them and get the specifics (names, descriptions, page numbers, locations, etc). Anyone have a copy who would be willing to help out?
I'm also looking forward to the release of the 4e Manual of the Planes to see what else might have been added in Sigil's writeup there.