I thought about a potential NX home console and until now I just couldn't see an open market for it. The power market is set by the PS4 (and PC), the casual market by smartphones, etc. Even the XB1 is struggling to find an audience in between. The market seems cramped.
No optical drive, just download (maybe cards like 3DS). The WiiU remains the disc based option for some years.
Standard controller with Amiibo support but no screen.
Limited BC though the VC for well selling classics.
Most WiiU games get ported, eg Mario3D, Kart8, Splatoon, ZeldaU.
Home console for $150 in 2016. and later for $99!?
That sound very unrealistic, Wii U is still $299 and you are expecting stronger console next year for half of that price. I cant see it, but price around $249 definitely, espacialy if it is a hybrid device.