We are going to support this important standard eventually, but first we need to rethink how these features can be implemented using glTF and refactor our code base to eliminate dependency on our internal format.

That sounds great. The way forward as far as B4W and the glTF format is concerned might be as a format extension.

Whatever the way forward, I hope it results in a stable export pipeline for glTF in Blender. It's gonna take a long time, but I believe glTF could eventually compete with FBX as an exchange format.

Has there been any discussions among the Blend4Web developers to make use of the glTF format now that it has hit 1.0?

https://www.khronos.org/news/press/khronos-finalizes-gltf-1.0-specification