Suggestion

Integration with Thermal Expansion/Foundation.
Specifically, making the potions compatible with the potion liquids from TF etc.

I haven't played with that mod in a long time. You would need to post here examples of this in action.

Well, the Thermal Foundation mod has a potion liquid, which can assume all vanilla potions effects and all implemented by the mod itself. It can be created by putting a potion bottle in a fluid transposer (transfers liquids to other containers). This potion can then be stored in a tank for later use, or put in a hypoinfuser (from Thermal Innovation) which can apply the potion to the player automatically or by sneak right clicking the item.

After some discussion with other devs, it has been deemed impossible to pull off. Sorry.