A reader pointed out to me this paragraph from the just published Canon EOS M review by Dpreview:
Trying to figure out where the EOS M3 fits into the mirrorless landscape is tough. Its closest peers, based on price and features, are the Fujifilm X-A2, Olympus E-M10 II and Sony a6000 (we're leaving Nikon 1 cameras out of the list, as we believe the series is no longer being developed.)
Yes, Dpreview thinks that the Nikon 1 cameras are no longer being developed and they are a website known for not publishing any speculations online.
I have not received any rumors about new Nikon 1 products in a long time. In the past few months Nikon has filed several lens patents designed for cameras with 1" sensor, but they could be for potential/future DL models.