Is WebGl 2 being developed?

I haven’t been able to find a thread about this. Both Unity and Autodesk Stingray are working on WebGl 2, so that they can utilize OpenGL 3.

Is there development of WebGl 2 by Epic for Unreal 4?

the unreal roadmap says, it is being developed. though not really, when it’s done. see here: Trello