I've caught some information on this game. It has some pretty interesting ideas. Like hang gliders, boats, boat combat, underwater farms.....I think they even mentioned underwater housing. Plus housing in general.
Crime, where you can steal from other people (in this case they showed like killing a chicken they owned on their property and them looking for signs of foot prints and what not) and they can investigate and try to catch you and send you into a judicial system which was a little unclear.
Siegeable guild forts that were SUPPOSEDLY designed somewhat by the players, so they aren't just a cookie cutter layout each time.
It's supposed to be F2P, but the implementation of how they expect to pull in subs and stuff kind of looked like if you want to enjoy yourself much at all or have anything you'd be subbing. Which kinda got me disinterested. I still want to try it out someday, but got a feeling it's going to be really difficult without subbing to do much.