APG: HTML 5, a look ahead

I would like to add this GitHub issue to today’s agenda: Remove or edit “HTML 5 - A look ahead” <https://github.com/w3c/aria/issues/216>.

HTML 5 and the "serialized" XHTML version of HTML 5 are years away from standardization.
Source: A2.5 HTML 5 - A look ahead <https://www.w3.org/TR/wai-aria-practices-1.1/#alookahead>
That XHTML version might be, but I'm pretty sure HTML 5 <https://www.w3.org/TR/html5/> is a recommendation ;) Should this be removed, or are there any bits that we need to save?

—Michiel