There's a script and the scripts folder to scale compositions.
Well, that doesnt really solve the problem. The footage now looks bad (as it should since it is being scaled up)
The thing I am wondering is how I can scale up the footage in Photoshop and then reimport it at the new size while still having all my animation look the same. After a lot of tinkering I believe there simply is no way of doing this since the spacial data will be different (in the 720 comp an object is placed at a certain pixel location that will not be automatically changed when going into a new comp size)
I guess the only way would be if After Effects supported Photoshop Smart Objects, but apparently it does not. Or if I had you know, built this in 1080 FIRST and then just scaled down, but I did not do that.
Anyways, thanks for the help
If your psd's are vector smart objects then resize the psd's after you run the s ale comp script. The scale comp script will adjust all of the motion correctly. Make sure that you run it on the pre comps as well.
Just resizing a comp won't work but the script will as long as the source footage is large enough.
File>scripts>scale composition or demo panel. (names may be off a bit. I'm posting from a phone)
Awesome, I'll have to give that a shot! Thanks!