If I may ask, why is Glitchmons not in the OMPL? It's as othery as an Othermeta can get, honestly.
I'd like to implore that you either remove randbats and include Glitchmons, as it got the 6th most votes in the poll, or to add on Glitchmons :(
Anyway, the regular SPL includes 12 metagame-slots so I don't see why adding another slot should be a problem anyways. Furthermore, at the moment there are only 6 metagames; adding another would certainly help with the foreseeable problem with ties!