So the Blizzard LiveBlogging Q&A thing happened. Check out the transcript if you like. There was a lot of filler, but there was also some (panda) meat:

Comment From Eldacar
At Blizzcon Tom Chilton mentioned possible incentives for raiding enemy towns to encourage world PVP in mists, can Greg or Cory elaborate on this at all?

Mumper:
In regards to extra rewards for world pvp, we are contemplating the idea of increasing players conquest point caps by an extra 10-15%.

I am assuming they mean contemplating about the Conquest Cap being increased by 10-15% for just killing players in the world – and by extension, that world PvP kills will award Conquest points. If it is going to be possible to hit the Conquest Cap for just killing players in the world, sweet chocolate Christ you may want to evacuate PvP servers before the server transfer queue hits 14 days.

I am one of those players who chose PvP servers because I enjoyed the tension while leveling, and how it created meaningful cross-faction interaction. That is to say, if I saw a Horde out while in the world, there was something of a ritual taking place. We both would stop immediately, look towards each other, try to gauge intentions. Then I would do /wave. He would do /wave. We had exchanged something there, something tangible; an admission of mutual respect. “Even though I am trained to kill your kind, I am choosing not to. I cede to your sovereignty, if you cede to mine.” Those same actions might have occurred on a PvE server, but they wouldn’t mean anything.

Of course, those interactions were pretty rare. Auchindoun-US had a 3:1 Horde ratio for the longest time, so 95% of the encounters were attempted ganks (“attempted” because I quest as Ret in PvP gear, yo). Or outright griefing during holiday events, expansion releases, or in new patch content. When the Molten Front dailies and the Thrall quest came out, Alliance couldn’t reliably complete them for the first three days. I don’t have much taste for PvP servers anymore, so if I ever came back it would be rerolling/transfering to a PvE one.

Anyway, it is not confirmed or anything, but Conquest points from world PvP kills would solve world PvP pretty much overnight.

Comment From Guest
Hey there. Will Pandaria have a new Dalaran like city or will we be using the ones already existing ingame?

Mumper:
We will have separate player hubs for both the Horde and Alliance on Pandaria. Separate hubs means we do not have to make them sanctuary and will encourage world PVP. These hubs will have access to an AH, Bank and general vendors. Valor, conquest, profession and faction vendors will be scattered around the world to encourage travel.

Comment From Kubus
One of the current issues discouraging World pvp is the presence of highly overpowered guards around cities and hubs, 1-shotting anyone who engages in pvp. How will this be in MoP?

Mumper:
We know this is an issue in the current game and we plan to address it in Mists. We want to encourage world PVP, not make it a one-shot game for npc guards. This is one of the main reasons we decided to make two separate player hubs instead of a shared sanctuary.

And one more…

Comment From MattWedra
At Blizzcon it was mentioned that PvE Scenarios will be something that we will queue for…Will we be required to be in the area that the PvE Scenario will take place in order to queue, or will we be able to queue for them from the cities like we do for the Dungeon Finder. If they are instanced events how will this “get the players out into the world” other than standing around a specific area waiting for the queue to pop, or am I missing the idea?

Mumper:
We are planning to only let players queue for scenarios from specific spots in the world (where the scenario is located), not in the cities. We want players out in the world, not spamming the queue button in cities.

This should be some welcome news to the “you kids better go play outside” proponents. Not only will the separated Alliance/Horde hubs increase the frequency of faction raids (assuming these hubs are set up correctly), you also have mass groups of players hanging out at various points in the world to queue up for Scenarios (and likely group with who they find there instead of LFD). And, of course, groups of people hanging around being mostly distracted will be juicy PvP targets. One of the best places for free kills back in TBC was near those PvP gear/charter NPCs out in Nagrand, or near the tier 6.5 vendor on QD, for example.

Honestly, how well any of this works will come down to whether Conquest is awarded for world PvP kills or not. If it’s just plain honor for kills like normal, I dunno how effective any of this will really be. Probably about as effective as Molten Front PvP… which is to say not very much at all.