http://www.iplaypsvita.com/2016/01/12/traveller-s-tales-talks-about-lego-marvel-s-avengers-on-the-ps-vita/
Sounds like LEGO Marvel really is going to be open-world on Vita, they keep mentioning it.
Also, Europeans, VG+ are taking pre-orders for Atelier Escha Plus:
https://www.videogamesplus.ca/index.php