I think it's extremely unlikely; when has any of these companies ever released the source to their products?

Also, from my experience, Anki was really good with the security behind Vector. He's so locked down that they'd have to officially release a firmware just to provide the functionality to load alternative firmwares or access other services. And with SSL you can't MTTM any of his connections.

I just don't see them having the resources to do anything more useful at this point.