(I know it's happened in the show, and in real life plenty of times, but I meant more in terms of the RP rules)
Now I haven't fully committed to the idea yet, still holding out a sliver of hope that we'll get some more Vacuans joining in, but I've been thinking, since that's clearly where most (all for now) of the action is, of possibly having Martin transfer to Beacon, either after the tournament or just at some point in the hypothetical future. I'm not sure if this is feasible by the RP rules other than in backstories, though.