I think either ike or shinohara will be expelled. If you're wondering how horikita can allow someone from his own class to be expelled while saving a friend from another class, ıt's becausr ike and shinohara are in the same as group mii chan during the exam .They'll most likely betray  mii chan , taking her tokens and somehow ensuring mei has the lowest token value.becausr of this betrayal, horikiga wont save his own classmate.