[tannhaeuser]

Sorry but this sounds not very informed to me. HTML5, including the APIs it specifies, is already the big rewrite/consolidation of browser standards. Considering the massive investment in JS engines and browser tech since V8 came out in 2008 or so, and considering the shrinking Web, this isn't going to happen. The approach of specifying features/API levels with requirement levels declared in page metadata etc. has long been dismissed by browser developers. Even HTML5+ doesn't bother to version their specs eg WHATWG's "living standard" thing.

[cm2187]

What do you mean by the shrinking web? Even desktop apps are now using html. It feels we are going fast toward a “all gui html”, for better or for worse.

[tannhaeuser]

I meant growth wrt to the original purpose of the Web as a self-service publishing platform.