Anet should implement cross-game chat with GW3 launch
One thing I envy about Blizzard games is that you can chat with friends across games.
If Anet really is serious about building a coherent GW community instead of just pushing 1 game, I think this feature needs to happen. That way the community would feel less fractured - doesn't matter that 1 friend is on GW1, another on GW2, and you're playing GW3, you'd feel connected like you're part of the same thing.
Would also make it a lot easier to keep up with all games, friends, happenings and make it easier to hop between games.