Can you dear zero-k developers/retailers make all previous versions of unit models available to players with similar balances to the originals but blending with the new versions to look like they were either improved or changed.
For example, that army uses the original alpha unit versions of Zero-K's database design blueprints which were found in their factories.
Older commanders that were permanently removed are again available to Zero-K members.
The original units, original buildings and commanders will be available again to you if this update was encoded to the selection settings found in the commander page which will ask you to select the version you want to use during a match.
https://zero-k.info/My/Commanders something like the 'my commanders' page here.
Maybe the community can help remake the models if they're lost forever.