Official Playstation Vita Thread! The Last Stand - Ys VIII, Mary Skelter, Yomawari Midnight Shadows, Persona 3&5 Dancing, Atelier Lidy & Soeur, DanganRonpa V3, Demon Gaze II & MORE!

[Kresnik]

I think it's the start of PAX Prime, which explains all the indie games.

And it's the run-up to TGS, which explains One Piece (a little).

As for Neptunia... who knows.