the only thing WoW had wich I never seen in another MMO is the minimap ,aution house and the ! and ? then alot of things they copied from other MMO's, so there is no surprisse that other MMO's copies WoW.
I've seen all those things in MMO's pre-dating WoW. FFXI had an auction house. 9Dragons has a minimap marked with ?'s and !'s so you know where to go for quests.