I am so, so, SO excited to see the map.
It was super cool when the second game's map dropped, and we got to see regions of the Warhammer world that had only been hinted at in lore before, the furthest coasts of Lustria, Naggaroth, and the Southlands. I can't wait to recapture that feeling with the map of the East. The mention of Hell Pit has me super excited, too; it sounds like we're not only getting the whole eastern world from Kislev to the Mountains of Mourn to the Dark Lands to Cathay, but also a good bit of the Far North / Chaos Wastes.
I really like the Kislev and Cathay worldbuilding they're doing, too. I still wish we'd gotten Araby, but at least these realms are fleshed out.