Hi all, I have been chasing info wrt DA11 compatibility for Chris King & DT Swiss Hubs.
DT Swiss have responded to say all 2013 DT Swiss hubs will be DA11 compatible and a DA11 adaptor kit for earlier hubs (? new freehub body & shortened cap at NDS end) will be available after Eurobike.
There is a supposed DT schematic that might be correct on http://www.bikerumor.com/2012/05/01/11-speed-road-bike-hubs-versus-10-speed-tech-breakdown/
that is consistent with this, and pictures on http://www.bikeradar.com/road/news/article/dt-swiss-and-schwalbe-2013-road-products-launch-34116/
of the 2013 hubs. Information has varied but it does seem possible that the hub width (OLN) has increased to 131 mm, but either way the hub flanges have to be "rejigged" slightly to the NDS to allow for the longer freehub body. This is more of a problem for manufacturers when the flanges & hub shell are one-piece, or there aren't swappable freehub bodies.
Chris King info was harder to get, but finally (from their marketing dept):
"The new Shimano 11spd system requires some changes to current rear hub designs to allow for the increased length of the splines for cassettes. To be compatible with Shimano 11spd, Chris King R45, Classic, and Cross 130mm hubs will require a new, longer driveshell and a new axle to properly position the hub with the new driveshell. In addition, built wheels will need to be re-dished a few millimeters. Chris King hubs updated with 11spd will be reverse compatible with 8,9, and 10spd systems by using a spacer placed behind the cassette."
Hope this helps,