Yes, please! Thank you for putting this up :-)
I liked the idea of setting the leagues up a little more like the tournaments - one can choose in which league to play. For example: I want to play Silver League, so I rent or buy the necessary cards (a min. of CP will be required), and enter Silver League for the Season. There I stay for the Season, having fun with all the other Silver League players.
Next season, I want to go bigger and rent a maxed out set of cards, and go into Diamond League - and have fun with all the other players with maxed out cards.
Only exception - Champions. There you have to qualify going through Diamond first.
That way, even new players can decide where to compete. They can dip their toes in Bronze, and then decide wether to rent/buy and choose another league next time - always without getting beat up by way higher cards.
There might be a few counter arguments to this, but even considering the ones I was presented so far I think it's the best way to get more gameplay-balance back in the game.