Hmm an interesting idea, I am quite intrigued about the idea of sneak and invisible for all at certain levels; maybe to late though with the abolition of physical levels already announced. I don't think it would be a good idea though to incorporate these abilities to be useful in combat in anyway. Also I personally don't really care much about jumping, I mean it does get a bit stupid when you can swing a massive axe around but can't climb a small wall but... Loads of other stuff I would rather come first ya know?