It's a long way going until I can get my hands on decent precision tools, but right now I'm in the conceptualization process. I'm about ready to nerd it up, so here goes:
I had this idea for a superficially magical girl type story (with magical boys with essentially the same abilities) that deals with themes of success and failure and how to handle being insurmountably weaker than your peers. The "magical" girls/boys are actually skilled practitioners of some kind of esotericism (right now I'm leaning for modern bents on Buddhist themes with inspiration from The Lotus Sutra and Hinduism, but I've considered other kinds of New Age beliefs) with heavy assistance from some sci-fi technology to perfect breathing and control chakra balance and energy flow. Instead of just offering fulfilment and enlightenment, the machines allow people to transcend normal boundaries and fight off the Children of Mara, who are trying to keep mankind from advancing into enlightenment.
(As you can see, my ideas are already dipping heavy into Buddhism.)
Because of the heavy amount of technology to be involved, and because I want drawing on paper to become a less painfully unrewarding process for me, I want to start drawing cross-sections of integrated ventilation and energy pathway suits, ego regulation diagrams, essential monitors for central command and for the suits' augmented reality lenses, and other things. It'll help me understand what's happening to the characters at any given time, and it'll help overwhelm the reader with technobabble and scary images if I need to increase the urgency of a situation.