Are there any plans to add liquid infinity?

I know the krakaen playthrough added them and I was wondering if this would become official, as it saves a lot of the mass production of DML, which could be major choke points.

Not currently. We do plan on improving endgame quality of life but not in this manner. Chaos Shards and everything after Omnium are intentionally not meltable.

The endgame progression (post-tank) is built around infinite basic resources and heavy infrastructure to process them. Liquid infinity skips a lot of the steps, trivializing the endgame.

After tank you don't really need to run the basic ingot models anymore and can re-purpose the simulators towards other materials.