Hi!
Today I thought of a good idea while doing transmog runs. It’s in short to simply have a new type of bonus roll coins, that are made for pre-Mists of Pandaria content.
These coins could for example be acquired with gold, or Timewalking Badges (since it’s legacy content), and perhaps have a cap of X (perhaps 3?) amount per week to prevent abuse. And some restrictions like with BfA’s raids could apply too, for example that mounts shouldn’t be able to be coined and that loot can’t be traded to other group/raid members. Also the coins should work for both raids and dungeons.
The reason for having these bonus roll coins for older content is so that you can of course have higher chances of getting that transmog you want, without spending an eternity farming a dungeon or raid.