Although we don't seem to know the exact details of the cup competitions I'm, probably very naively, going to take a positive outlook and say the certainty of 30 league games at the expense of cup ones will (or should) help fixture scheduling , and that will benefit the more successful sides.
22 games always felt like a bit of a sprint whereas a league should really be about proper endurance and 30 games provides that. It gives the more ambitious teams a bit more leeway to drop points and not lose touch in the league. For instance had the season just finished been 30 games I'd have expected to see Pollok challenging very strongly with the progress they made after the pish start they made. it's mental that a bad opening half dozen games could basically kill a league season.