There's always a chance, though as you probably already know, the Beehaw admins are being cautious about community creation to avoid undue fragmentation. The current community survey has a camping/hiking community on the proposal list to vote on. If that community gets approved, it will probably launch as a more general "outdoor recreation" community, which might go some ways towards the sports pursuits community you're looking for - at least for some sports.
Looking at the public user numbers on the current Sports community, though, I think low engagement may just be that we don't have a lot of people around here who are interested in sports yet.