Yeah, it's largely more of an artwork issue since we'd have to account for all the different characters you could choose in the already large CG Scene, which is why we don't deviate too far in those choices since we only have one guy doing all the sprites and CGs.
Hopefully in the far off future with Uni 2 we'll be able to do more varied choices like that.
That would be pretty fun to see and certainly a possibility to have later on.