You guys should read the IGN article!
The levels expand and shrink dynamically when players enter and exit the game. There's a new damage penetration physics system that allows for real-time damage on vehicles (and possibly environments!). This means that if you hit an M1A1 Abrams with a T72 shell, there'll be a huge fuckin shell crater on the tank (if it survived the blast).
EA is supporting a new player statistics factor that records every online game you play. Players move up the ranks, starting at Private and ending up at General (if you're that damn good...expect General Lasereth after it comes out everyone).
There's also a squad-tactics engine in play in Battlefield 2. If you play as a team, you can become a clan with a title due to teamwork. I agree with this 100%! There was something "magical" about running around a corner with a PKM Machine gun, seeing your teammate shout "take cover!" and launch a grenade from his grenade launcher attached to the AK-47. After the blast, you run in with the Heavy Assault PKM and attend to anyone else who requires your attention. Now EA Games is supporting this and DICE are making it a key factor in Battlefield 2. This sounds really damn good.
On top of the aformentioned features, players are now rewarded for actions other than kills and flags. DICE is incorporating a new point system that gives points for medics and engineers! That's right, if you run around refilling ammo, healing people, and repairing tanks, you get points for it. This is a GREAT idea. It really gives an incentive to be something other than the Heavy Assault Buffet of Death open 24 hours (thanks PA).
Those screenshots look nice, but the game really got interesting after I read the interview. I can't wait...only a year to go.
-Lasereth