Is HTML5 going to take over the DRM world, or are more established formats such as PDF likely to prosper?

Lately it seems that the DRM world has found HTML5 again, perhaps having tired of the various machinations of the XML world (a huge library of XML standard message formats is available at XML Standards Library), or perhaps because W3C decided to include an API  to discover, select and interact with DRM systems as well as with simpler content encryption systems.  It does not define what DRM may or may not be.  In fact the design of the system is to push DRM handling and management to the page authors. Read more