[mamcx]

That is why I say both editions must be supported. The old and the new. But the thing is put a deprecated warning to the old so is possible to build a better new. This also will help to clean JS/CSS.

[ethbro]

Any viable improvement to the status quo needs to take multiple stakeholders into account:

Web developers - want a clean, extensible, sane system to code against

Major consultancies (e.g. IBM) - want lock-in, wide and cheap talent pool, and minimal changes (unless it's an issue they have)

Browsers - want to render whatever they see fastest and securely

Content developers and end customers - never want to have to update their site that they bought in 1995

[wild_preference]

Because now you’ll just have two problems.