Well, I got my paws on an 8705 today, and as most everyone knows, there is nothing really special about this device other than being HAC, but these pictures certainly answer the question as to whether the device would have 4.2.

I did a search, and as far as I can tell I've got the only pictures out so far, so here they are, shown first on BlackBerryForums.com : Your Number One BlackBerry Community, shown first by dc/dc.