Ours now has the front bumper with the winch and light bar. I have not seen the colors of the latest 3 Kenworth deliveries, one of those may be dark brown.Yep, my wife and I saw your vehicle at the GXV facility when we visited them back in February.
The vehicle I saw on Sunday looked very similar to yours(KW chassis, dark brown) but had the front bumper/brush guard that GXV is using for the KW.
Enjoy AK. It is absolutely beautiful up there this time of year!