Just discussing a few options.
We could start a Triwizard Tournament year, the only problem being that many more people than 3 would wish to compete, which is actually a big problem as I see it.
If you haven't noticed, an old RPG was a Gryffindor Vs. Slytherin quidditch match.
I'm sure we could restart it. Keen?
Ohhh! I have an idea!
How about we have a Quidditch World Cup that way there won't be any competition for roles on a team or anything.
1 person per team, to make it easy!
I'm sure I could devise a draw of some sort possibly...
But how would we play fair?