I haven't seen doing anything with them, even though they would probably play a huge role in BLADE, especially the first game. I think it might be a good idea to write them out and have humanity become space-faring some other way. Lost precursor tech, maybe?
Nah. Too cliche. I might do a twist on that, though. I'll have to think about this. I'll also have to talk to Aaron about it and see what he thinks.