Emerald Dragonshrine is a subzone of Dragonblight in Wrath of the Lich King. Perhaps an indication that the expansion after WotLK might be Emerald Dream? Way too early to speculate, though. You can view a short video and screenshots of this area below.
Depending on the status of our media server, I hope to be able to post some even more interesting previews later today -- so check back "in a bit"(tm). Meanwhile, World of Raids has many new interesting screenshots posted, which we were unable to upload to Curse due to media server issues at this time.