For now everything remains unchanged and if anything new comes into effect it will not be earlier than next year. So the upcoming season stays as it was the format remains the same and I think there is no point in discussing it yet. Even if you look at how the new format affected the Champions League in my opinion it got worse. Because the weaker teams have completely lost any chance of getting out of the group. They almost always stay at the bottom of the table and I assume they will just start losing interest in this tournament.
Even though it is quite true that we are not going to see this changing, we should realize that we are not going to get that much change on the UCL part. Premier league would be terrible because less teams would mean there would be less chances of smaller teams doing better, more teams means even smaller teams could beat other smaller teams, and have a go at the midtable teams, and if they do alright, they turn out to be like Nottingham forrest did this season. That would be gone.
But UCL is different, you make nearly 30 million euro from just being in the group there, and most teams in Europe that are low level, do not make that much money from their ticket sales, tv rights or even jersey sales. So being in the group, is still a lot of money, even if they end up losing all the games. Consistently being there means more to them than win a single game.