Thank you for your inquiry. The EzCad3 boards use a different enough communication protocol that we don’t have a specific plan for them yet. We have a machine here, but haven’t connected it yet, as we have a few other things on the go presently, along with previous feature commitments to some of our vendors. We understand folks want an option, and we plan to investigate providing, it is just a timing thing.
To help with decision-making, we are still on track for a Q2 '22 release, (but it is software and stuff occurs 
).
If willing, you could head over to our Suggestion Site and make a request for “EZ3 board support” with a description, so others can start voting it up. We use that to help with prioritizing our efforts and can inform when the status of a suggestion has changed. 