1.) to allow a user to import adobe illustrator documents with layers and allow them to be edited with the vector tools inside of photoshop.
I know you can import them as rasterized layers....
2.) have after effects recognize masks on grouped layers in photoshop.
3.) be able to apply multiple masks on a single layer without having to group them.
4.) be able to apply a gradient on a curved path instead of the default linear way
5.) Please fix the 3d tools they are very clunky. You should be able to change the pivot point of the axis of a layer and rotate it like after effects solids without having to go to an alternate workspace. I would also like it if the layers could be bent or folded on an an x, y, or z axis (like a bend deformer) but still be able to be editable if a person changes their mind.
6.) the transform tool you can initiate a grid to deform it in the options, a helpful ability would be to also be able to change the amount of grid lines and be able to adjust the falloff of influence on the points themselves to the image.