Could we consider moving to an Overwatch-style ranking system?
MMR (probably renamed LP) is flat-out your ranking. Ranks (Silver, Gold, etc.) are thresholds, and once you pass them you get that rank for the rest of the season. Divisions still exist and can be dropped out of, except V. Diamond and above can be dropped out of.
No promos and your actual ranking is a lot clearer, but maintains the vast majority of the benefits and functionality of the current system. Thoughts?