The power of bad word of mouth. Must have hurt the Mario and Sonic Olympic series pretty bad too, as Rio sold less than 100k on Wii U. 

More than enough time.

Yup, thanks to the internet we can get news pretty quickly these days. 

No. If NX will indeed be hybrid then there would be an overwhelming amount of information to explain that could take longer than six months.

How so? It's a console you can take on the go or plug into your TV. It won't take people over 6 months of information to understand that.

NX just needs awesome games. Six months seems plenty to me for advertising and considering how rumor-ridden the NX has been, I think its reveal will get plenty of press and forum discussion.

Also essential that software titles are revealed at time of NX's unveiling.

Yes, I think it is. But just barely.
It would be unwise for them to wait any longer.

Off topic but I love your new profile picture. Nice pick.

Kratos is a pretty cool guy. Not always chill but pretty cool guy.

Nope but I don't believe it will be released in March of 2017 so it will have more time then that.