Before I get started I would like to say I am not complaining about anything, nor is this a necessary feature, I am just saying what could be done with the tools currently at hand and and the not so distant sculpt tool.
Using image sequences like the furrys use for their eyes when they blink, you could make morphing sculpted objects by putting the RBG maps for the sculpt tool in a sequence. This would allow for far more complicated avatars and objects, without having to make serious performance upgrades or streamlining the interface more than needed to support sculpting and image animations by themselves. If there are any technical problems with this idea, let me know.