I looked into Smart Vision as well and found the same things that you did... i.e. zip!
With zero internet hits, even on Wynn's website, and being just 3 months away, I would have to conclude that it cannot be a convention as one would normally define one... with seminars, presentations, sorority booth babes, many attendees, and that kind of stuff.
What does that leave? Maybe a small private (or semi-private) gathering of a handful of industry hopefuls in a small conference room that someone dubbed "Smart Vision 2016"?
I hope I am wrong...
Anyone called the Wynn to inquire what is happening at their Las Vegas hotel on Friday, September 23rd at 6:00 PM?
(702) 770-7000