It would be good to have a change from the Champions League. For me, that format has become very stale.
But the proposals for the Super League that I have read are not good. The idea that the 11 founding clubs could not be relegated for the first 20 years takes away half of the interest in a league format. What if those clubs fall away in quality? These things happen, particularly if they lose their funding. Seeing the same clubs every year also becomes dull.
If a league format is to be proposed it should have clean promotion and relegation, with the potential for all clubs in all European leagues to work their way up. I would suggest four leagues of eight teams, with a qualifying competition for new clubs to enter into the bottom league each year.
However I would much prefer to see a club cup format, like the world cup. This could take place at the end of the season and run for a few weeks. Qualification would be based on the league positions at the end of the season to guarantee the best clubs enter. Much more exciting!