we are already being pressured by "layer 8" folks to start deploying Windows 8. We've started getting some of the new Dell hybrid ultrabooks that convert into tablets. They ship with Windows 8 on them, but our current stanadard image is Windows 7. Of course 7 isn't nearly as "tablet" friendly as 8.
Our initial tests show that the new x64 winpe doesn't seem to have the necessary pieces to use DISM and we can't figure out how to capture and deploy a Windows 8 image that we can use with LANDesk.