I think it has potentially fatal flaws in the gameplay aspect. The server I play on is dominated by 1 mega guild. Problem is its an evil guild, rollling random pks and massive ganking. Now pvp is what the game is centered around, but when all the high lvls control the places to gain exp it makes it impossible to lvl.
Since you cant lvl you cant defeat the evil guild. Plus carebears pay the bills, hardcore pvp guys are a niche market, look at EQ for example, made cash hand over fist and still does, they have like 2 or 3 pvp servers. Game has massive potential just hoping the devs realise some problems coming up and have a solution.