After one season things will, presumably, start to level out. However, I just cannot imagine any southern Wales clubs willing to be placed in any league which is predominantly north Wales based. The only geographical beneficiaries might be from the southern parts of the present Mid Wales League area which might be able to switch to southern dominated leagues.Therefore 2 of Abertillery Bluebirds, Panteg and Ynyshir Albion's will need to succeed in their appeals to create 2 purely South Wales Divisions. A lot of disappointed sides mid and north, whose sporting merit, could be considered better?
The current north/mid Wales part of the Welsh Pyramid is structured so that there are, in effect, 48 clubs at level 3, and the south is structured so there are only 16 clubs. However, there are no grounds to say that the 48th ranked club in the north/mid area is any different (better or worse) than the equivalent ranked club in the south which would be a club playing in the Gwent Premier League or the top division of the South Wales Alliance.
Indeed the Gwent and S Wales Alliance clubs might (?) argue that they have been held back by the hierarchical structure of the former Welsh League (south). Certainly clubs which entered the now former league could argue that they have frequently been highly successful once they've managed to fight their ways out of their lower leagues.
I shall be curious to see if the southern based clubs will start to show any enthusiasm for even entering the Wales's equivalent of the FA Vase. They've generally avoided it like the plague in the past.