I'd actually use the Rebel Óg Model for the adult county leagues. Cork North - Divisions 1, 2 and 3 if needed, Cork East - Divisions 1, 2 and 3 if needed. Cork Mid - Divisions 1, 2 and 3 if needed. And Cork West - Divisions 1, 2 and 3 if needed. You could have an All County League then for the Premier Senior League.
I don't see the logic in Adrigole playing Glanworth in the league in February. It would be better for Adrigole to play the likes of Castletownbere, Urhan, Ilen Rovers etc. And it would be more beneficial for the likes of Glanworth to play Kildorrery, Mitchelstown and Buttevant in the league.
For Rebel Óg, they should make the Divisions tighter again for better logistics and less travel. Bring back the original Division templates e.g. Avondhu, Duhallow, Muskerry etc. And as North Cork said, you could always make adjustments if there is imbalance in the grades e.g. Putting Ballincollig into the City if needs be.