Well this is great. I hope it is a seperate campaign but way better than the piece mail one we got in UC3. I like it for it to be an continuous story. Maybe a side story to the main campaign. Make it happen ND! Also make sure you have Splitscreen in it. I do like you had that in UC3.
There's gotta be Joel and Ellie co-op, 'nuff said. I can imagine ordering my friend to toss a brick at that guy or make a noise over there etc. Splitscreen needs to happen, they have to sort out the aspect ratio this time so 1/3 of the screen isn't occupied with a picture, just in case we forgot which screen we were