The Honda zone rep was in to my store last week doing some training. I was bugging him to spill the beans on the new Accord and refreshed Odyssey.
Of course he wouldn't give it up, but he did say the Navi system was going to be a newer generation, and that there would be "extensive" improvements to the interior of the vehicle. I am thinking AUX input on all models, Navi and power tailgate availability on models such as EX-L RES, maybe 17" wheel size.
I think the press embargo is lifted in the next few days so we will all know then.