Actually, it looks like a misunderstanding. This trademark was also posted on the same day:
Source: https://twitter.com/trademark_bot/status/590043229371891712/photo/1
As with the Vita image, the face buttons are highlighted, so it seems like both are just a trademark related with the default PS face buttons. Looking at the Vita's image, some people are claiming that there are R2/L2 buttons, but those are just the slots for the R/L buttons. The Vita model actually seems to have the old proprietary charger entry and the OLED model larger rear touchpad, while possessing some Vita 2000 characteristics, like the round Start/Select buttons. So it's not a new model, just another unrelated trademark.
It makes sense, since Vita 2000 is out for just a little bit more than 1 year.
