Just Video Games is reporting that the Resistance 1.50 patch is coming out later this month (26mar09 to be precise). Some notable features include:

• Meltdown Mode added – Apparently, we will be getting to play in a remake of the classic Resistance 1 multiplayer mode.
• New co-op difficulty – Superhuman has been added as a mega, ultra-hard mode for the co-operative campaigns.
• Second player PSN login – The split-screen second player can now login to their own PSN profile and their information, gaming XP, etc. from that session will be saved.

I say yay for the saving of 2nd player’s progress in splitscreen mode!

In addition to the patch there will be DLC in the form of some skins (a buck each) and a map pack (six bucks).

Resistance 2 1.50 Patch Details