Soundwave on 16 October 2015
One year is plenty of time to port a game. Third parties don't make exclusives for anyone anymore, so they don't need to "learn" every nuance of the system, they just need to be able to port some titles for the launch ... dev kits hitting now totally points to a November 2016 launch.
It means developers who are working on projects launching in fall 2016 (like ahem Dragon Quest XI or a FIFA 17 or whatever) can easily accomodate NX versions right now. As long as the hardware can actually handle a port without forcing developers to have to bend over backwards, one year is plenty of time for dev houses.
