Actually I still consider AoC the one game where open world pvp while leveling up worked. The rough atmosphere of it encouraged ppl to fight each other for quest mobs or just because they met each other. For some quests I even had to find a group, because alone it was impossible to finish the quest with all the other players there killing each other. I remember one of the starting isles ppl went there with alts and it was one big death match zone.
Ofc once you got to max lvl, it was a disappointment, but it had potential and some of its features were good. TOR got warzones, AoC had open world pvp that was actually happening.
So we will see ... it may not be the next big hit, but I think it's worth checking out.