Been reading A LOT about the new MP features in U3 MP, and my prediction:
U3 MP will run on dedicated servers!!!
Here's some reasons why:
* Uncharted is the PS3's "baby" -- What other true reason is there to own a PS3 -- even if you have an XBox?!?!
* Playstation EXECs will MAKE IT HAPPEN
* The FANS want it -- Naughty Dog is keen on given the fans "what they asked for". Perfect example now is "They wanted * "rewind", we're giving them REWIND in U3 MP!"
*Let's face it, with ALL THESE NEW FEATURES, dedicated match servers would make it all "smooth as a **bleep** slipping out of church" <-- Sully reference LOL
I highly doubt that U3 will have dedicated servers, for many reasons.
But even if it had, lag wouldn't get any better... actually it would get worse, unless every country in the world had one (pretty much impossible).
ps: The only problem it would solve, is ports-related (NAT).
Speaking from some experience in IT, currently P2P Hosted games rely on your connectivity to the Host -- whereever they may be. If upload to the Host is bad, people will try to kill you where you "were". If download from the Host is bad, you will die from someone shooting you where you used to be. If your download is good, you will get current data from the Host on everyone's position and actions. If your upload is good they will see you where you currently are, but pair that with a bad download, and your shots may not kill them.
Dedicated servers would change this in such a way as to ensure you are connecting to somewhat local sites where your connectivity is pretty consistant. Servers would have to "talk to eachother" across regions, and theoretically those cross connections would need to be as fast as possible. If set up right, your connection to the server would remain consistent, but the lag would be introduced in server to server communication.
I'm pretty sure ND specifically stated that they love P2P because of its efficiency (cost-wise and performance-wise). I doubt they'll renege on that statement.
When did they say that? It makes sense though.