I played DAOC and loved it. Here are my thoughts in case any of the GW2 devs are following this thread.
1) Titles based upon WvW performance (kills, keep lords killed, etc…). This gives you a sense of who you are facing and just how experienced they are. Lets you get a better idea of your own progress.
2) Killspam messages. Gets you in the mood because you know who is active and lets you jump right in to planning on where you are going to catch them and how you want to fight them. Very important on getting those rivalries going that make the game fun.
3) Larger maps with more open field fights. Right now the WvW is all about taking keeps. I would love to see more open field fights that focus on movement and maneuver rather than on seige.