http://www.pcgamer.com/ys-eight-lacrimosa-of-dana-delayed-on-pc-one-day-before-it-was-set-to-launch/

We noted in our list of six NIS America games coming to the PC this year that Ys Eight: Lacrimosa of Dana is the first in the series to come to Western shorts in nearly a decade. In fact, it was supposed to arrive tomorrow, September 12, alongside the PS4 and Vita releases in North America and Europe. But just one day ahead of its scheduled release, the publisher has put everything on hold, and there's now no indication as to when it will be out. 

"We regret to inform everyone that the release date for Ys Eight: Lacrimosa of Dana on PC has been pushed back due to continued efforts in improving gameplay quality," NIS America wrote. "We sincerely apologize to our fans who have been looking forward to this release. Ultimately, our goal is for fans to enjoy a high-quality game. We are providing the extra care in the PC development of the game by taking time to enhance the overall quality of gameplay."