Twenty Sixteen features a new, never-released design that has some really unique touches on a traditional blog layout. It adapts well to different devices and is a joy to use.
I have been eagerly watching the theme announcements while awaiting the introduction of the new default WordPress Twenty Twelve theme. Twenty Twelve, will be a part of the next major WordPress release, version 3.4. Primary development of 3.4 will likely begin around the 3rd week of January.