[paramiteabe]

But we don't know for sure if there is even more slig queens out there let alone others. How do you know that?

Infact I think since Oddworld is so big, Sligs are only native to Mudos strictly. So I think there is only one queen for each super race, and when she is ready to die she births another queen to take her place.

Oddworld is so big that Mudos is a small cornor of the planet. For instance the races of Oddworld are like completely alien to each other because of the vastness of the planet. Where one race would be extremely advance to a race on the other side of the planet would take years to get to that point in their technology.

That nature suggest to me that best represents the races of Oddworld because they are one super race in that area. There is only one queen for each super race thus sligs would have one queen. But I can be wrong too.