Great early News on D/W's preparations for Sochi: According to DWTS pro Derek Hough on his blog:
"This week, I also started working on a very special routine that's not for the show. I'm choreographing a number for our world champion ice dancers Meryl Davis and Charlie White to perform at the Olympics next year. They graciously asked me to do it and how could I say no? It's truly an honor and they're amazing. They won silver in Vancouver, are five-time U.S. champions and two-time world champions. If you're not familiar with them, I highly recommend you check out some of their routines. They actually taught me a new move that I might have to do on the show. It's a trick and Kellie would be able to do it. Maybe you'll see it in a few weeks!"
I suppose we can guess that Derek is helping them with quickstep choreography for the SD.