And are the Briori still out there? Sure the "37's" took care of the ones on that planet but where are they from? And what about the race that took the human slaves from that western town on ENT?
I'm sure they are still around. In the episode IIRC the humans who are shooting at Tuvok and his security team are surprised to find most of the crew are human not Briori, which surely suggests they are still around?