Structured Player vs. Player (sPvP) is a core feature in Guild Wars 2, and it’s quite massive.  The features we want to add to sPvP, to use an analogy, are like an iceberg…It’s more than we’ve been able to say so far.  And like all our other game types, we talk about sPvP features when they’re ready. We shipped the game with some key features, but a lot of features we wanted to show at release simply weren’t ready.  So now we’d like to start talking about some coming features that, until now, have been beneath the surface of the ocean on our metaphorical iceberg.