We cannot answer the latter, but we now have a partial answer to the former. Five of the classes that will be available in EQ Next are: Rogue, Warrior, Tempest, Blademaster, and Wizard. Any, all, or even none of these may be one of eight starting classes.
A few other tidbits about classes were also discussed during SOE panels, including how to distinguish what class a player or NPC is (answer: how s/he stands and holds his or her weapon) and character builds (items plus abilities will together constitute a build). Hungry for more info? Keep your eyes peeled for a more in-depth look at the philosophy and mechanics of classes coming soon!
What happens in Vegas doesn't stay in Vegas, at least where SOE Live is concerned! Massively sent intrepid reporters MJ Guthrie and Karen Bryan to this year's SOE Live, from which they'll be transmitting all the best fan news on EverQuest Next, EverQuest II, DC Universe Online, and the other MMOs on SOE's roster.