As you may have heard, there is a league system in the making to bring back divisions like you know them from many other competitive multiplayer games. The backend logic is almost finished now, and we are actively working on client integration.
There is only one thing missing now: The actual names for the divisions plus icons to represent them.
We will have a tiered system: There are five tiers with five subdivisions (I-V) each and then one top tier that has no subdivisions.
For the graphic side of things, we plan to show small icons in the matchmaking tab, so they should be 20 pixels high and no more than 40 pixels wide.
We also want to show a big version in a new leaderboard tab. The design there is not finished yet, but I estimate that there will be around 150-200 pixels of height available. You can see a first idea for the new leaderboard below. The big division graphic goes where the empty rectangle is. Of course the rating plot will later show the division distribution instead of rating.
If you have ideas for division names, or are capable of making nice graphics for them, just reply here.