Got quite a few more replies than I was expecting. I think I managed to hash out setting ideas for the most part. The group had actually decided on a system already but I'm frankly a guy that enjoys a lot of the old school themes (even if I wasnt around for most of it).
The group wanted to try out BESM 4e since it came out (surrounded by weebs) and I can at the very least make what I need for it.
I have a list of game systems I periodically grab the rule books for for inspiration. So I will add all of your suggestions to it.
Mainly I was suffering from writers block on how to generate the setting as I'm used to fantasy in the more traditional sense.
I will probably write a synopsis of it here tomorrow if anyone is interesed.