Dunamin said:As a Planescape fan I can understand that, though doesn't bastardization hold equally true for the City of Brass?
That city was noted to have strong connections to devils, but it seems less plausible now that devils are prisoners of the Nine Hells and demons roam the Elemental Chaos.
The City of Brass doesn't have nearly the game lore associated with it that Sigil does. Plus it has a mythological basis. Re-envisioning the CoB would have a lot less baggage than re-envisioning Sigil.