There would be a lot of kinks to work out for this to come to fruition but you can see the benefits. Especially if there is a Super League in the future. It would be interesting to see all the proposed teams in regular competition with each other. I wouldn’t want to see their respective domestic leagues take a big hit as a result and I doubt those leagues would either. It certainly wouldn’t make sense to do this league without it being the primary source of qualification for European competition but again the domestic leagues can’t be fully left out.
It seems like this would only really come about if the gap between the super clubs and every one else widens as expected given the recent changes in Champions League. We shall see