Camera angles. Why is it that only racing games have more than 2 different camera angles? There's cockpit view, chase cam(near, medium, far), overhead view, front of the car view. Perhaps others as well; it's been a while since I've played one.
Yet, Saints Row(as an example) has over the right shoulder view, and fine aim. That's it. Why not over the left shoulder(adjusting the handedness of the character would be nice as well for this), left fine aim, centred third person(traditional), first person, top down, perhaps even isometric(leftish and rightish maybe). Oh yeah, with each of the 3rd person views having near, medium, and far variants.
Alternatively, imagine being able to hold a particular key combination down and being able to adjust the position and angle relatively freely. No moving the camera in front, so more out to the sides, above, and behind the character. While I'm going completely crazy, have the option to save several positions, so they can be changed to when you want.