Something I would like to see in upcoming vue releases is the ability to Lock on a object, or multiple objects, like in 3d max. and also Object ID's, like in max, which would help a ton in complex scenes organization, controling plants and that sort. The layer organization tool is awsome but object id's would take it one step further.
Also it needs a larger primitive object archive to work with, which need modifiers you can use such as taper, extrude, at least we would be a little less limited on the modeling part, so everything you need that is not in vue has to be imported.