it's being worked on currently. Main reason we haven't recieved any news on future expansions because vita is the priority at the momennt
Firk vita, can you imagine trying to play laggy, slow poxnora on a portable, he'll nah. This is also taking developers away from computer poxnora.
Hopefully it comes out sometime in the near future. Portable pox is one of the main reasons I started playing to begin with