Give us something to do with all of our acquired gold. Caldessan's is okay, and enhanced GRs work, but how about adding something to Kanai's Cube? The Cube already gives users the ability to upgrade a rare to a random legendary, and reforge a legendary for better stats, so how about giving us the ability to guarantee a reforge of an item to a primal ancient? Make it cost a lot of gold (perhaps a billion and/or upgraded gems), but it is still subject to requiring a player to complete a solo GR70. This might also give us a reason to use some of the gold build items like Goldskin or Kymbo's. Just a thought.