Well it does look interesting, even if not really innovative for a MMO (or any 'vidio' game on that matter), how much it will be overhyped depends on how much effort will be put into marketing division tho.
Will it be WoW killer? Frankly i dont give a damn about WoW and/or killing it in any way. It has its fan base, just like Starcraft has. Personally dont see anything amazing about either of those.
Sadly tho, its yet another fantasy mmo. Getting quite bored with those, there is already too many of them and each year several new sprout around. Where are decent sci-fi ones? Where are modern world-look alikes? Sure we got TOR and TSW on the horizon but thats really not much, and Star Wars type of sci-fi is not the droid im looking for.
Come to think Neocron was probably last cybeprunkish mmo created and noone decided to pick the genre up since then. Sad :<