Ugh. No. You need vendors having common interest banding together to standardize on some parts for everyone's profit (what WHATWG essentially was). Otherwise,

Ugh. No. You need vendors having common interest banding together to standardize on some parts for everyone's profit (what WHATWG essentially was). Otherwise, no matter what the committee does, it's doomed to fail because there is no incentive to support them. And given that no one wants interop with their systems (except for some users, but who cares about them?), an interest group is unlikely to appear.