According to http://fedoraproject.org/wiki/Documentation_Beats there are quite a few open beats, unconfirmed writers (*), and beats still containing F11 content (#).
If you have begun work on a F12 beat, it would be helpful if you could confirm your status (remove *), and update the status of the beat if there is no longer obsolete F11 info present (remove #).
If you've never written a beat, why don't you consider joining in on the fun?! It's not as difficult as you may think, and you will learn a lot about the topic you choose to cover.
http://fedoraproject.org/wiki/How_to_be_a_release_notes_beat_writer