And odds are that you've met the main guest of the expansion already as well -- I bumped into him during a walk through the spirit world in Wyrmskull Village, and he wasn't very nice to me already (and frankly, I saw a side of him I've never seen before -- having identifed myself as a Shaman for so long, it was extremely interesting to see him do the same). Blizzard promised from the beginning that we'd meet and greet with the lore heavyweights early on, and they weren't kidding -- we're right in the mix from the time we step off the boat.
I love it -- without getting too spoilery, what else is worth seeing in these starting zones? We almost got Keristrasza down last night in The Nexus, and it's almost hard to remember those days when it took 40 players to take down a dragon -- even solo and five man players get to do epic stuff nowadays. What have you done already?