Health Potion Upgrades

In a future patch it would be great if there was an option to upgrade health potions to increase the level of healing they provide...unless I've missed this and it's already in the game. I have found that later on in the game the health potions don't heal my full health bar anymore so it would be great if we could upgrade potions, perhaps through the Caretaker shop like we do with other items. 

This was something we could do in DAI and I thought it was a smart way to keep pace with the increases in player health.