Transfer More Attributes with Particle Instance Modifier

I'm trying to hack my way around one of the bugs in the current daily of 2.8, and a thought occured to me:

The "From Dupli" feature doesn't work on particle instances, because they aren't duplis. Fair enough. But what if the particle instance modifier could imitate that feature for various attributes, such as UV's, normals, vertex color, vertex groups... maybe there's a way of recreating the Particle Info node with data layers that are saved to the object via the modifier.

I'd like to see Blender's particle systems become more feature-rich, and the real goal is to do this kind of thing for Everything Nodes.