Interesting response on reddit:
I'm not saying this is fake, I'm saying this is a placeholder for the actual release.
Ravnica. City of guilds. A plane whose main planet is covered in a large city, also referred to as Ravnica.
A setting where the city is the entire reason for going there. A place that isn't Faerun. A place where the inhabitants have an entirely different way of life than that in the Realms. A place where you could meet anybody, make any deal, where travelers from across the planes meet.
Does this sound familiar?
Ladies and gentlemen, you're looking at the placeholder for Sigil.
This is very likely the first 5e book I will skip.If this is Monday's announcement instead of Eberron, Planescape, or any other actual D&D setting, I'm gonna be mad. I'll probably still buy it, but I'll be mad.
This also explains why it’s a fourth book, breaking from their pattern of three hardcovers a year. It’s a bonus. It’s not coming at the expense of a D&D book.I imagine that's also the thought behind releasing it in November. So D&D players who don't care about MtG or Ravnica (which I have to look up how to spell each and every time, as I've never written that word before) will at least have the Waterdeep duology.