Evolving biters
Biters evolve either with your progression or with their own factory mind.Changing the one track mind of the biters.
With the process complexity of the factories I expected more of the mental processes going on in the biter AI.Imagine what the game would look like if biters evolve with new abilities and interaction. Foraging storing socializing environmental mapping etc.
I saw a science flowchart

And I over-layed a different interpretation of those processes imagining how it would function as an AI mind so that the function blueprints can be reused while you tier up.
Edit: Links didn't work so here is an other attempt to share it remove the brackets
>> https[://www.]reddit[.com/]media?url=https%3A%2F%2Fi.redd.it%2Fdu5ae6c8iyq71.png
>> https[://]imgtr[.ee/]image[/]WMUAM
More visual cues to show what's going on in the biters mind would be useful.