So whilst on the drive home yesterday I was over-taken by one of the Volvo Concept Trucks, as we were both driving into traffic I was able to snap a few pics.
The side skirts extending around the drive wheels were the most promimant feature, however I noticed that there was a low lip under the front bumper, and the gap pannels between the cab and trailer were also extended. It also appears that they are testing cameras to perhaps replace mirrors.
Although it is not a good shot of the front it does have a much smoother front to the current FH. The head lamps have also been re-designed and the step / door gap is alot smaller.