I feel like Microsoft doing this is their new attempt at trying to dominate how the web will be shaped. I know the likelihood of async/await being bundled with

I feel like Microsoft doing this is their new attempt at trying to dominate how the web will be shaped. I know the likelihood of async/await being bundled with ES7/ES2016 is pretty high but lets say it gets delayed for further review, is Microsoft going to wait until these specs are "official" before releasing it into standard non-preview Edge or are they just going to rush it as fast as possible, pat themselves on the back and then shrug their shoulders when their syntax is completely different from the actual ES7 implementation? async/await is important and highly desired by the community, but I would prefer if it were not Microsoft trying to blast ahead and create yet another separate fragmentation between browsers. Sure they call it an experimental feature, but how long until they decide, "well we're not going to wait for this to get finalized, we're releasing it for everyone!!!" ?