No, there isn't (in long-term perspective) - because the only non-playable race are the shakturi, but those aren't (and can't easily be) independents (although some of the old races from DW1 aren't playable yet, but they certainly will be in the future )

But, even if you'd try to mod this before the other races get their upcomming DLCs, it's NOT an easy task, because ALL races share the same file (and race-IDs), independent of the fact if they are used in game as independent factions, or if not.