It's possible and Onyx's responses seem to mean other devices will receive their own version of 3.0. Meaning for Android 6 devices, 3.0 may be a more limited affair in contrast to the Lumi etc.
I'm an artist and I use my Nova pro as a sketch pad. I honestly just want my layers. I suggested layers to Onyx a while back and I'll be satisfied with that alone. Anything beyond that is icing on the cake for me.
That should hold me off until the color technology gets better on E ink.