The two new maps are called: Westmorland and Camborne. North America will get these next week. The European territories should get them shortly after the NA launch. Along with the Map Pack Resistance will be getting another big patch. They will finally globally unify the servers!

Here are some videos of the new maps.

There will be some upgrades to team play. Your Teammates’ names will stand out more so you don’t kill guys on your own team. And there will be more skins to distinguish your team easily. Another cool feature is that you can access the PlayStation Store from within the game. You’ll also be able to integrate your PSN buddy list into your Resistance buddy list.

[Update]

The 2 maps packs will run $ 7.99

[Source]

Resistance: Fall of Man Map Pack Preview (PS3)