[..I hope there's an NT replacement in the bunch...Mike]
Just going by which segment (sport, sport touring, ADV, cruiser, standard, etc) of the market is hot these days, it could be a little brother to the Africa Twin?
I know there is a totally new Gold Wing in the works because the heavyweight cruiser segment is now crowded with competitors but I hope they they retain the flat-6 powerplant to keep it unique. With the exception of the BMW 6 and the Wing, all the other heavyweight tourers are powered by monster size V-twins.