Today Dpreview published their interview with Nikon at Photokina and as the editor mentioned in the comments, Nikon's answer on the future of the DSLR (and few other questions) appears to be "we'll keep doing what we're doing". Here are few other quotes that just confirm this statement:
"We don’t want to change our policy, we will keep offering the best DSLR to the customer."
"The Nikon 1 concept is fit for some customers, for now we’ll keep Nikon 1 as usual."
"Some manufacturers have tried to enter the DSLR market with their mirrorless camera or something. Our standpoint is different. Because our product mix covers full-frame and APS-C DSLR and the Nikon 1, these three product categories mean we offer to the full lineup and we receive each customer’s good reactions."
Pictures credit: Photokina