I genuinely have no idea myself whether this is a good idea or not - I read it somewhere, though I can’t recall exactly where.
That said, do you think it might be worthwhile to introduce a Mythic+ Token vendor?
The vendor could offer a range of items such as toys, mounts, and transmogs, but more significantly, it would provide access to loot from the eight dungeons. This would allow Mythic+ players to purchase their Best-in-Slot items directly, rather than relying on the often frustrating randomness of drops.
It would also give players who regularly push high keys another avenue to acquire Mythic-level gear.
My suggestion is that the final boss, if defeated within the timer, would drop one token corresponding to the level of the key completed. For example, completing a Hero-level key would reward a Hero token.
Token Breakdown:
- Mythic+ 1 to 7 – Champion Tokens
Can only be used to purchase items marked with the Champion token symbol. - Mythic+ 8 to 10 – Hero Tokens
Can only be used to purchase items marked with the Hero token symbol. - Mythic+ 11 and above – Mythic Tokens
Can only be used to purchase items marked with the Mythic token symbol.
Edit: I forgot to mention that you might need 3 to 5 tokens to purchase something and maybe even more to purchase a weapon.
Edit 2: I also forgot to say that bosses should still drop random loot, but the token is just a guarantee for all players who timed the key.