No. Andrew House mentioned that since Neo is not a new generation of HW, they will adopt more "apple-like" approach with the unveiling of it [which means really fast deployment after announcement]. I still expect it to be launched this year, barring some manufacturing issue.
It does not have to be that way. Sony could just release Vita Neo, totally backwards compatible successor that enhances controls [into full DS4 set] and offers more processing power. That way they could retire Vita, produce new [and hopefully cheaper device] and retain their presence in portable market which is still viable in Japan. If they did that I don't expect a large 3rd party AAA support, but constant stream of indie titles and Japan sales could make Vita Neo proffitable.
I would be happy with that kind of device. Better controls, better features, regular arrival of portable-friendly games.