All in all, if all of these features get implemented in the DisplayPort 1.3 standard, we are going to be in for a world of awesome. This will not only enable some great display resolutions, but solve a lot of problems that DisplayPort 1.2 didn't address. I have always been a champion of DisplayPort and its overall utility and usefulness, and since the HDMI 2.0 update, it proves that the working group style of standards really results in a better more forward-thinking standard.
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Its in the works, but these are some features they are looking to add. In addition to HDMI 2.0 becoming official not too long ago, and USB working on a new, reversible connector, it seems things are finally moving towards where they should be in 2013.