I didn’t play the original game. PvE content and small group, instanced, structured PvP doesn’t interest me. But I stumbled across a world vs. world video a few weeks ago and now I am definitely giving this a try.
Open world PvP is very dependent on high populations to work well. One concern I have comes from my experience in Warhammer Online. That game also offered PvE content, instanced PvP, and world PvP. My main interest was in the world PvP but even during the very first month when populations were high, it was difficult to find consistent world PvP action. I realize that WAR split each server’s population into opposing factions and that their tier system split the players up yet again, but I still get the feeling that there will be many GW2 servers where the world PvP action will be less active than other servers.
Over time, players interested primarily in world versus world gameplay will begin migrating to a subset of servers where the majority of players share their primary interest. I’m not saying this is a bad thing as I can definitely see myself following that path.