We expect to be able to publish a draft of a Netflix profile describing a limited subset of the MPEG DASH standard early next year. It will define the requirements for premium on-demand streaming services like ours and will take advantage of hooks included in the DASH standard to integrate the DRM technologies that we need to fulfill our contractual obligations to the content providers, thus covering the sixth item on our list.
They aren't very coy about saying they need DRM.
Even leaving the DRM aside, some sort of agreed-upon standard for items 1-5 and 7 would still be very helpful; these are all capabilities that are left to Flash or Silverlight for cross-platform capabilities, and I'd think there would be plenty of use cases that could find one or more of those very helpful. (Adaptive bitrate streaming would be a huge improvement, and I'm sure Justin.tv would love a cross-platform streaming video standard.)