If you've been following my updates and plans, you might have seen some talk of a Chi system. No longer talk, it is now on my list of planned features.
Name: The system and powers will not be called "Chi" because Skyrim is not Chinese. Instead, they will be called "Focus".
How you will get them: You will be able to acquire them through a number of achievements and quests. If, for example, you completed a quest to find all of the Pillars, you would receive a power. Or, if you, got an achievement for acquiring all of the Monk perks possible, you would be given a new Focus ability.
How they will work: Now, for the most part I do not plan to create a system like the Grandmaster mod that casts spells when you attack with unarmed. I may add a few of that sort, but they will mostly be lesser powers that either give you a temporary effect. One power might, for example, temporarily make all of your Monk attacks paralyze your enemy. Another might slow time so that you can avoid or block a blow. Some of these powers will cast spell when you attack, though. A Focus ability could, for instance, cast a lightening bolt when you power attack. Whatever the effect, though, they will vary and will hopefully be unique to my mod.
How you can help: Suggest powers in the comments. Please don't overload me with a hundred suggestions, but I do want you input. After all, I can only think of a limited amount. And those that I think of will be related to how I usually play the game. So feel free to suggest new magical powers that will effect unarmed, unarmored, and fist-weapons.