I'd like to see things like archery, fencing, and martial arts added (taking a very brief break from begging for magic and supernatural things)
I'm thrilled that they added in sparring with the military carrier, and that the new fitness machine makes it look like your sim can do a lot of cool moves, but it could easily have been its own skill
With archery they could add things like trick shots the higher you get your skill, and have it so you could do things like say.. shooting an apple off another sims head (or.. failing to do so... non lethally of course)
Being able to sword (or lightsaber..) fight other sims would be epic, and as you level it up you could unlock new tricks (weapon flourishes, moves, etc) until you've gone from randomly swinging your sword around to being a master at using it.
I'd admittedly also like to see ballet added, the current dances in game are.. interesting, i was a little bit confused when the skill stopped at five when it could have gone higher and had more added in.
*falls back into supernatural things*
I'd also like to see tarot card reading, divination, things along those lines.. where you can tell a sim their future or things involved with it to give them mood changes or influence them similar to a (more interesting) voodoo doll, where if you read that something is going to happen to them it will actually do so.