I think it's important to realize that there were problems with the old system and that bringing it back as it was will likely never happen. My suggestion on how to turn this into something more actionable to vote on would be to outline more clearly what is expected and how to implement it in a way that addresses the previous problems and establishes a base on how to move forward productively. Here is my personal suggestion:

Introduce leagues with x card limits (both minimum and maximum, minimums are important at gold/diamond/champ)

Allow players to choose their league based on which cards they have that qualify for that league. (higher level cards can be reduced to league caps, cards under league cap cannot be played at all)

Suggested rewards split proportional to investment (maybe 1% novice, 4% bronze, 10% silver, 20% gold, 25% diamond, 40% champ)

Establish Glint based leaderboard prizes at the team's discretion.

Make this change in Modern only for testing purposes.