What's that?
30-team league, every team plays against each other just once, and then you have an extra game against your "historic rivals" - if you don't have one you play against the team closest to you. Relegation as they've been doing it (lowest 3-season average points gets relegated). They also add an extra tournament that only past league winners will take part into (18).
So weird is it an extra way to stop the big teams go down?