Well here was a reply on GAF to that suggestion...
It could be. There's a lot of confusion about Yakuza Ishin for example. They mention that it is cross-play but there is no Yakuza Ishin game coming to Vita. People assumed they made a mistake and wanted to say Remote Play but then in a Famitsu interview they again reference a Vita game. So a PockeStation-like concept could be on the way. Then again why would SCEJA announce it, why announce it now when they could have 2 montsh ago?