I think we've mostly just got to come up with a reason why everyone would be together, I think we'll start with the first feast of the year, just have to count how many students in each house we have
Edit: right now it's two ravenclaws, two hufflepuffs, one gryffindor and one slytherin, so we at least have some possible interaction at the feast, but it shouldn't last much longer than everyone's intro posts so it won't matter that much if there's not more than one person in each house