Hi everyone,
I have been reading recently that WebGL 2.0 specification are now a work in progress. The desire goal of WebGL 2.0 is to bring the capability of OpenGL ES 3.0 to the browsers. WebGL 2 would also be fully backwards compatible with the current specs.
Even the HTML 5 test website have incorporated a test for WebGL 2 in their beta version.
Some links:
http://beta.html5test.com/
http://www.khronos.org/registry/webgl/specs/latest/2.0/
http://blog.tojicode.com/2013/09/whats-coming-in-webgl-20.html