The Sony UK blog has a chat with a producer on the title, check it out here, not much new if you're following developments, but the one strategic change is the addition of offensive and defensive pads. It also covers the cross-play offering against WipEout HD on PS3
PSB: Have there been any tweaks to item pickups or weapon functionality?
MP: In previous Wipeout games, there was one item pickup pad that offered both offensive and defensive items. In 2048, the item pads are split up between offensive and defensive, so you can be a bit more strategic. If you’re in first place, you can focus on picking up items that are useful to you.