DCT is a waste of time on an otherwise out of date bike. Why bother when the engine and chassis and suspension are all out of date?
That's why it is a total redesign. There have been a number of patent filings which show a wing like bike. Those patents include a new front suspension (leading link?) and automated windscreen (up / down).
There are a number of other items and yes, DCT is one of them. Also, total updated electronics.
My sources are various Internet sites (yes, I know, the Internet CAN'T be wrong!). But also, I've talked to some Honda folks.
However, my plan is still to purchase a touring bike in 2018. IF Honda doesn't redesign the Gold Wing then I'll likely go with BMW, it is just soooo much more advanced. Although I "hate" to get the first year production of any vehicle, I did it for the GL1800 (and had a number of recalls and some unsolved longer term issues) but 2018 is when I plan to get a bike soooooo.
I'm not loyal to Honda.....I'm very happy with my 2013 GL ..... it's met or exceeded all my expectations. I will likely shop again in another 4-5 years. When I do, I will survey the landscape of bikes and buy whatever I perceive as being the best value. So it's up to Honda to do their best if they want me to buy another. The balls in their court. I don't lose any sleep over it.