So they just gave the title and showed the cover mock-ups; no specific info till Monday?
Moloch was also nerfed.
Well, last time we had heard, he was still an imp, so even nerfed, he's been buffed!
Interestingly enough, the two archdevils so far previewed are the two who have been (last we heard) deposed and exiled. While obviously this makes them the most likely to encounter adventurers, as they aren't, you know, actually ruling planar layers and stuff, I'm hoping this is just a coincidence and we're going to see the full set of archdevils detailed...
I also think they are probably presenting the rulers from different eras for people who prefer not to keep up with the D&D timeline.