I really can't imagine how much further can they go with the next character creation, if that's what gonna happen. But if that's what they're focusing at, I'm sure they can make improvement.
Weird thing is, although SR3 and 4 seem to use the same creator engine, I think there were adjustment in the parameters. Because when I put the stats of my SR4 character to SR3 and vice-versa, the characters would look different.
I noticed the same thing when using the same character face formula.
And it would be nice if we could stop the head from turning constantly left and right.