Some interesting suggestions here.
Some are highly unlikely to happen, like making wages etc. public or lessening the amount of games. Others, such as “safe standing,” and paying attention the Club World Cup are kind of meh suggestions. The suggestions about ending the Europa League, reformatting the Copa America and having 10 players are definitely ways to change football but not really good ones to put it nicely.
The two most interesting ones for me were the regional leagues and changing the international break. The idea of regional leagues may be further along than you think, as per the Guardian’s initial look here at a possible “Atlantic” league in Europe. If a European Super League is coming then why shouldn’t other clubs assess things. I don’t think it would happen nor do I necessarily want it to happen but it is interesting to think about.
The changes to the international break would be huge though, and hopefully well-received. Instead of the stop start beginning and end of seasons annoying the majority, I think most parties would be fine with two prolonged longer breaks with friendlies, qualifiers etc. One would think a lot of countries might benefit from the increased time together, I’m looking at you England.