Well...Guild wars 2 has a very active community, usually very nice too (if you're in troubles, very often you see ppl running to help).
Lots of new contents, in terms of new maps, personal story mode, raids (a new one has been added yesterday ^^), fractals (peculiar types of insyances), instances, items, etc, are added constantly.
There is no open world pvp in "ordinary maps", but for that you have arenas (Mists) or you can join the World vs World action.
The main "problem" with GW2 is that, if you're used to WOW-like games, that is playing/grinding to get the best gear and be more powerful, this isn't your game: you can craft your ascended gear and it's the best you can get, because legendary gear only allows you to switch through specializations (berserker, knight, carrion, etc......stats), but it's exactly equal to ascended in terms of gear level.
To make it short, in GW2 you play to reach goals, or to get new skins, to explore...not to improve your gear in terms of raw power (even in pvp everyone gets equalized gear).
About Tera: the combat system is fun, one of the best (imho), the graphics is still great, you can level up by doing the story and it seems almost a single player rpg (I had fun with it too), raids are cool....but it's a damn pay to win game and the community is fading quickly...it's quite small atm.
Bless Online has been a big disappointment for everyone...I hope they will make it better, but...
Black Desert Online....amazing graphics, but u need to gring savagely (and it gets boring) and sadly it's becoming more and more a ptw game too.
I have some hopes for Ashes of Creation...still in development tough ^^
