Lets start with Hand to Hand, an essential skill for a Bard/Monk/Brawler type character. Hand to Hand would be a skill in itself an work drastically different than in Skyrim. The left trigger would be the attack button and would alternate fists while punching like in oblivion. The block button would cause your character to put his fists up in a defensive manner allowing him to mitigate some damage. If you attack while holding block, your character would perform a kick manuever. Punching would deal physical damage as well a stamina damage, allowing you to knock an opponent unconcious once the run out of stamina. Kicking does not drain stamina but does more damage than punching.
With perks alloted in Hand to Hand, you would be able to slow time while blocking (similar to when you are using a shield or weapon). A forward power attacking while punching would cause the player to perform an uppercut and stagger(with a chance to knock them down) the enemy and drain signifigantly more stamina. A stationary power attack would result in a hay-maker punch, dealing more damage and draining more stamina. Doing a sideways power attack while punching would cause you to perform a spinning back-fist that staggers an enemy and has a chance to knock them down, as well as drain more stamina. Performing a backwards power attack while punching would result in a powerful, full swing punch to the side of the enemies head that has a chance to knock them out. All unconcious enemies recieve double(eventually triple with perks) the normal damage. A sprinting power attack while punching would result in a flying uppercut that has a chance to knock an enemy down and deal extra gamage. Crouching while doing a power attack results in a paralyzing strike to the enemy(there is no kick manuevers while crouching).
While blocking and punching, as I mentioned earlier, results in a kick. Block with hand to hand does not impair movement. A stationary kick deals more damage than the standard punch and will stagger and enemy. Doing a forward power attacking while kicking results in a powerful front kick able to greatly stagger and enemy. A sideways power attacking while kicking results in a spin kick staggering an enemy and potentially knocking them down. A backwards power attack while kicking results in a devastating roundhouse kick that has a high chance of knocking an enemy unconcious. Kicking consumes much more stamina than ordinary punching. A sprinting power attacking while kicking allows you to perform a running jump kick that may knock an enemy unconcious and deal extra damage. Jumping while attacking unarmed results in a devasting dual strike kick. You kick with both feet in mid-air, knocking an enemy flat on their back. As a result, you also fall down but while recover faster than your adversary. With a perk, any enemies hit with the speeding body of the victim of the dual kick will also be staggered and even knocked down if they are extremely close. This attack is effective for dealing with crowds but consumes a lot of stamina.
To complement Hand to Hand (and even some people that use sneak and other skills), a new skill tree could be made called Agility. Agility would consist of 3 skill branches called Acrobatics, Athletics, and Unarmored. With the first perk that connects all three branches would be a perk that increases the rate of stamina regeneration.
The Acrobatics branch would allow you to perform a dodge manuever while holding block, and jumping in the direction that you wish to dodge in. Acrobatics will also drastically reduce fall damage, allow you to do a long jump while sprinting(increasing the jump dual-kick damage), a hight jump(hold sprint and press jump) enabling you to get onto higher ledges etc. Also, with a perk, fall damage will deal damage to your stamina before doing health damage.
The Athletics branch would allow you to run faster while sprinting and consume less stamina, increase the distance of a long jump, allow you to swim faster slightly faster and hold your breath longer, increase the effectifeness of sprint attacks, increase the speed of recovery after a stagger or a knockdown, and grant you a once per day power allowing you to sprint incredibly fast and consume less stamina while doing so. Also, this branch while have a perk enabling you to travel up steep inclines with the effectiveness of a horse(you gotta love this one).
The Unarmored branch would increase your damage resistance while wearing nothing but clothes or not wearing anything, allow faster attacks while not wearing armor, and allow a quicker stamina regeneration for not wearing armor. Also, with proper perks, you are harder to detect while not wearing armor(sneaking or not sneaking) and also pull less aggro in combat. You also take considerably less fall damage while not wearing any armor. The final unarmored perk gives you a once per day power that, if you cast it and your character loses enough health during this time to the point where you are almost dead, then you are forced into a state of regeneration(such as essential npc's). When you are down, you are able to crawl around slowly. You drop all your aggro causing your enemies to attack nearby hostile's (such as a wolf also attacking them or your companion). However, if there are no other targets, you will still be attacked killed while bleeding out.
These skills could be part of a DLC that involves some sort of monk order or perhaps a fight club of some sort or even be considered in the next elder scrolls game. Please give me some feedback

