Interesting. Moving to under-the-tape cables and levers that don't flop around would make Dura Ace an option for me. (I've been a campy guy for years in part because of those two things.)
http://www.velonews.com/article/73506/shimano-s-other-new-dura-ace
http://www.velonews.com/article/73506/shimano-s-other-new-dura-ace