The most interesting thing will happen when an Android phone with a screen & keyboard is Android with a Chrome desktop. Marketing shouldn't be burning the midnight oil to figure out the branding of Android/Chrome cross overs.
I would actually really like to see a "crossover" phone. Windows is trying this strategy, but of course then I'd have to carry a windows phone. I can imagine how nice it would be if I could just take my phone out and dock it and do some work or make a presentation.
I miss my Firefox OS phone (Flame). Chrome OS seems to have solved the apps problem here.
If Google were to release Chromium OS community builds for Nexus phones, I'd have a gander. (My Nexus 4 needs a new battery and I don't have the spare change to run out and purchase a Pixel!)
HTML5 for the phone and Android/Crouton compatibility via Wayland would make for a nice challenger to Ubuntu Convergence/MS Continuum.