Here is a list of Scavengers that have been submitted thus far:
We are also putting together a list of primary and secondary weapons here:
If your idea requires more than a few word to describe it, probably best to not submit it.
So basically, we will have a lot of races in the game but most of them won't be part of the main story but rather side-quest races that you will meet. They won't have a home planet that is within the Origins main game area but rather are traveling from further out.