Hey, if we're going to start asking for stuff from Ustation why not throw in Project Variables?
In terms of VW application it is completely counter to the philosophy of all the project information being within the file, but it becomes necessary when managing large projects.
In this case I think it would take the shape of a file governing classes (inc. all attributes and maybe even class text attributes), symbols, hatches, gradients, scripts etc and maybe even keep track of layers so two files on the same project can't have layers with the same name.
Without a doubt it would make managing a large project easier.