I can't wait for the day when three.js gets obsoleted. That would mean that someone would have done a free and open source 3d library that is easier to use and with a better designed API. Until then, we'll keep going.
I know projects like GWT or LibGDX would benefit greatly from something like this, and personally while I like coding JS, I prefer my prototypes to be in JS and my final code to be in Java. (I know, heresy).
You are doing amazing work btw.