1) Last patch for the keep and towerwalls, it makes upgrading and defending of such structures pointless. Two hours to get to tier 3, five minutes to tear it down.2) Lack of interest from Anet in WvWvW (aside of implanting features they possible can make money from) + not listening to feedback from the users.3) Balance of classes.4) High mobility + High damage, shouldnt you give in dps if you want more mobility?5) Stealth is still an issue.