Thats right guys! another Ys title is heading to america thanks again to XSEED games for the localization and publishing. This title is actually based off the 4th entry in the series but developed by Falcom itself. There are two other Ys IVs around: one on Super Famicom known as Mask of the Sun which is canonical to the series (up until this vita version) and one for the Turbografix CD/PC Engine which is considered a spin-off titled Dawn of Ys. (To understand the relation between the titles see Zelda Oracle of Seasons and Ages for reference and read up on the mentioned Ys games).

Article about the upcoming localized titles.
Ys Chronicles+ and Ys Celceta Localized! - Ys - Giant Bomb

and if you're interested here is a trailer. Celceta Trailer.