I'll give this a go. I might have to take some time to formulate my thoughts and ideas, but it's definitely a neat set-up. Also, I love the epic, sweeping intro that's completely irrelevant.
I'm certainly curious about some of the planets and cultures, since they might give me a couple ideas. Though if we've got free reign there, maybe I'll just go nuts with one or the other of the sort of things I like. But, let me see if I have any particularly useful ideas or concepts for characters kicking around...
- Some sort of android other PCs find and who joins up with them. Advanced military spec that crams something similar to a mecha's firepower in a human-sized frame (plus additional armor bits). Shamelessly inspired by Busou Shinki. (Alternatively, a cyborg doing much the same).
- Someone who is perhaps suffering from "poisoning" or overexposure to Ley ore/metal. Possible ZOE parallels.
- A reincarnated hero from a golden age...whose current incarnation happens to be a young girl. Powered armor, hot-blooded heroism, and conflicting memories of past lives abound.
- Some sort of concept based around a culture that went full biotech. Probably considered something of a sociopath by their peers because they're fine with going out and traveling with others, etc. Many inspirations depending on how this goes.
- Some other take on the sort of genre of magical girls who are totally not wearing ridiculous powered armor.
- A reyvateil
Hm...that list ended up longer than I thought. But I'm sure things can be pared down or combined in bizarre ways as needed. Giant robot adventure seems like one thing I never get to see (unless I GM it, but even then I'm the only one really big on it).