In addition to various clues about the new instances and what they might contain, we're also treated to a list of various phased events. Someone named Tarecgosa will be involved in events at Coldarra (we have some sort of intro hinted at twice), which could mean the Blue Flight is finally getting ready to pick a new leader. Meanwhile, the Firelands opens up with new dailies, and Anachronos finally decides it is his time to return to the Caverns of Time, perhaps opening up the War of the Ancients raid we've been teased about.
It definitely looks like the Cataclysm is kicking it up a notch in patch 4.1, but much remains to be answered. Why are ZG and ZA making a return now? Are we finally going to find out what Hakkar the Soulflayer has to do with Hakkar the Houndmaster? (I ask this because if ZG is back at the same time that we're being sent back to the War of the Ancients; that's a big coincidence.) Will we finally get to see Neltharion's fall into madness and transformation into Deathwing? This should all be very interesting.
World of Warcraft: Cataclysm has destroyed Azeroth as we know it; nothing is the same! In WoW Insider's Guide to Cataclysm, you can find out everything you need to know about WoW's third expansion, from leveling up a new goblin or worgen to breaking news and strategies on endgame play.