Instead of having a garment with lights on it I prefer the idea of luminescence so its more of a subtle lighting, or even through fibre optics.
I am also interested in the idea of changing colour and form, maybe through touch/heat/motion.
I also looked into wearable technologies that serve a purpose and are actually designed to help specific people, like the shoes that vibrate to help guide blind people. It would be awesome to integrate a similarly specific purpose into my design.