P.S. Skyrim would seriously benefit from Chair-fu and the many related schools of combat.
I would
so enjoy being able to play a meek ~servant, of some thoughtless or foolish lord, that gets into all kinds of pivotal situations but few people ever know about it. A person who never actually looks for praise, glory, or great accomplishment, but finds, or is forced into, many opportunities to get them. His favored tool would be the bar stool; a fine weapon that can turn away the axe of the berserker, bash the skull of the assassin, or provide a comfortable place to rest on those more arduous tasks. During the game, one may find better versions of it, or may manipulate one's lord and employer into buying versions that "don't keep breaking so unreasonably often"; or even never break at all.
The lords or wealthy individuals you follow throughout the game could vary incredibly, and in each case you'd be trying to manipulate them for their own good (an extremely hard goal) and the good of those around them (an moderately hard goal). Your employer would send you on all kinds of dangerous, deadly, fantastic, and seemingly impossible tasks without having any understanding of what you'd be doing while you were gone. So another of your main challenges would be making sure your employer is not bothered by those horrible scars, those steel reinforced travel suits, or that potent arrow warding talisman, or the fact that your eyes are glowing from that Great Magic Crystal you had to swallow last task.
Depending on how you did in the game, your current (and ideally, longtime) employer might one day look at you very carefully one day and realize you've somehow acquired the personal wealth and power of The High Fantasy Adventurer, and ask you "why are you working for me again?" Of course, there are other responses that would make me laugh just as much corresponding to other employer natures.
I could go on with this game design like one of JoshuaFH's game idea threads, however, circumstances inform me that it would not be prudent to do so.