Animate CC [previously known as Flash Professional CC] will become Adobe’s premier web animation tool in early 2016.
It's a mixed bag: on the positive side, it will allow/encourage the use of [open-source standard] HTML5 content. But on the negative side, it will continue to support the creation/use of Flash content: "Animate CC will continue supporting Flash (SWF) and AIR formats as first-class citizens". In particular, Adobe is now working together with Facebook to help ensure Flash gaming content on Facebook continues to run reliably and securely.
http://blogs.adobe.com/conversations/2015/11/flash-html5-and-open-web-standards.html
http://blogs.adobe.com/flashpro/welcome-adobe-animate-cc-a-new-era-for-flash-professional/
http://www.wired.com/2015/12/adobe-flash-is-dead-in-name-only/