This
Gameinformer | Microsoft Confirms Indie Self Publishing, Microsoft Responds To Our Questions
and that
IGN | Independent Developers Will Self-Publish Games on Xbox One
HTML5 still not mentioned and also the pricing topic... But at least another good twist in Microsoft's policy on the Xbox One.
re: xbox one and HTML5...
some good news...
http://www.gamasutra.com/view/news/199486/HTML5_games_on_Xbox_One_Microsoft_eyes_crossplatform_development.php?utm_source=buffer&utm_campaign=Buffer&utm_content=buffer80d3f&utm_medium=twitter
Develop games in your browser. Powerful, performant & highly capable.
here's even more recent details.. looks like it's a go..
http://gamingbolt.com/xbox-one-new-details-play-media-files-html5-support-developers-loving-system-sdk-and-performance