with OOW you got some clicky thingy that has no visible effect as far as I can tell. God, there was a faction modifying staff. DoN there is some hitpoint/mana regen potions, that I still haven't claimed.
Mistmore is a high level zone, now, and so is Splitpaw lair. Veeshan's Peak was upgraded, and a new quest to get the new key to Veeshan's Peak was implemented. Ingame maps are available and even an atlas with the zone connections on it. There is a new barter zone that's similar to the bazaar. I still have rarely used it, but I'm thinking I might start just to get some tradeskill stuff.