Eberron? Count me in!
I don't see Xen'drik as being anything like Chult, personally. (Assuming I am right about Chult being a dinosaur-infested jungle.) Xen'drik has all sorts of terrain (since it is a continent), the ruins of the Empire of the Giants, tribes of scorpion-worshipping Drow and the Traveller's Curse that makes all journeys potentially problematic.Xendrik is too similar to Chult, so I highly doubt we'll see much of a focus on it.
I've got a question? How come ENWorld didn't cover the stream from Friday? It talked about moving the announcement and the SDCC exclusives?
I've never heard of a Chronomancer, but a combined setting as you described sounds interesting. I could live with Eberron + Metasetting setting. I wonder what they will call it, Chronoplanejammer?
I am getting old. I would rather it be Greyhawk or just something totally new.
Something new with LESS lore would be fun...more to fill in.
In 1st Edition AD&D days, the 'Realms seemed new and novel. We enjoyed a less populated feel. Now? It seems like a Mexican soap opera to me. Part of it is the many books and popular characters but it seems too civilized, too tamed, too well known.
Something fresh or little explored would be fun. I would buy a reference just for reading pleasure for Tyr's sake!
Note: In the previous "photo tease", the word (CHRON)OMANCER in tiny script in the upper right hand corner. Plus the mention of "time machine." Chronomancer was a one-shot meta-setting for AD&D2e - a sort of "time-travel" version of Planescape, with it own classes: Temporal Raider, Temporal Champion, and Chronomancer.