I've put my line in the sand multiple times now.
Q1 2016 is when I believe we'll get some NX information to start. Name, outline of platform, game demos (tech included), and holiday 2016 launch.
E3 2016 is when we'll get a full blowout of crazy NX information including price and actual launch dates plus confirmed launch titles with playable demos. As well as any final tidbits of info they purposefully left out in the Q1 nintendo direct.
Q3 nintendo direct will re-iterate any information, dates, bundles, etc. Plus a bunch more titles/demos etc.
All the while there will be some 3DS/WiiU titles still mentioned throughout 2016 (first three quarters) plus the Zelda title that will be on WiiU plus NX.
Its happening.