If and when we get a new hero class, you can probably count on it being a healer/DPS hybrid that wears mail at maximum level. We only have two specs that take advantage of spellpower mail, and they're both the same class. We also could probably use a new perspective on healing like death knights did for tanking. But, of course, they couldn't be only healers, because that's not how classes in the game work (anymore).
That's my prediction, and I'm sticking to it.
Also -- Blizzard has said many times there will not be a new class for Cataclysm, so this is a ways off.
Danielspeaks asked ...
"With the introduction of reshaping Azeroth in Cataclysm, do you think they'll create new low level instances? Or even change 'em?"
Blizzard has said that while they may not create any new 1-60 instances in Azeroth, they'll be redesigning some older instances with current design philosophies (and the Dungeon Finder) in mind.
Mousewrites asked ...
"For the achievements Epic and Superior, must you have purple/blue shirts and tabards as well?"
Davelea asked ...
"Will the goblin and worgen mounts be available to the other classes at Exalted, and if so should I stock up on Runecloth?"
We have no idea, but it's very likely given how racial mounts have worked in the game up until now.
Dosman711 asked ...
"When is WoW.com going to update their prot paladin guides? It would be great to have a new-to-80 tanking, stats, and gear guide."
We've had a few other new-to-80/new-to-the-class guides for other classes and specs go up recently, and there'll definitely be more in the weeks to come, so if you're interested in a similar guide for protection paladins, you can do one of two things -- check out previous TLaHTSI posts where Gregg Reece talks about prot tanking, or ask him to create a Prot 101.
Have questions about the World of Warcraft? The WoW.com crew is here with The Queue, our daily Q&A column! Leave your questions in the comments and we'll do our best to answer 'em!