Guild Wars 2/Guild Wars: Eye of the North Q&A

About.com has published a two-page interview with ArenaNet co-founders Jeff Strain and Mike O'Brien about their recently announced Guild Wars: Eye of the North add-on and Guild Wars sequel.
Q: PvP combat is a very popular part of Guild Wars. How will PvP be implemented in Guild Wars 2?

A: There are two kinds of PvP in the new game. I think Guild Wars really has one kind of PvP, and that's the level playing field, you know, everybody has equal power kind of PvP. And we thought with Guild Wars 1 that there was kind of a gap between the ability of people to play roleplaying, and the ability to get into PvP in that roleplaying is entirely cooperative, so you're rewarded just for playing - it's not a very high-stress environment, but as you get into PvP everyone is on equal footing, and you're using up space on a team so it becomes very, very competitive.

In Guild Wars 2 we'll have another type of PvP that falls between roleplaying and Guild Wars 1 style PvP, which we call world PvP. World PvP is - when you're playing in Guild Wars 2, you're playing in a persistent world, and everybody in your world is on the same side, so everyone you meet when you're out adventuring is on your team, and your world is periodically in combat with other worlds. You can adventure into the Mists that connect the worlds, and there are powerful artifacts in the Mists between the worlds you can get that benefit your entire world.