Don't know if you've noticed, but the promotion system also changed a bit, now the winner of the finals and the team with the best regular season record promote. Not really sure what happens if the same team winds the championship and has the best record though.
5 teams from each division demote, both 8th + the losers of the playdown between 5th and 7th and between 6th. So it's easier to promote but also harder to stay there afterwards