Last month, there was a report that an updated version of Okami HD was being released this holiday season on PlayStation 4 and Xbox One. Today, there's a bit more fire for that report, with the Korean Ratings Board listing ratings for 오오카미 절경판 for PlayStation 4, Xbox One, and PC. If you can't read Korean Hangul - I can't, but USgamer newshound says it translates roughly to "Okami Clear View" - that's the Korean title of Okami HD, released back in 2012 for PlayStation 3.
Okami HD would be the second remaster of the game. The original Okami was released on the PlayStation 2 in 2006, with a follow-up Wii release two years later. The first Okami HD was released on PlayStation 3. According to former Capcom employees, the original game actually ran at much higher resolutions than previous generation systems could render.
"[Hexadrive chief technical programmer Junichi Iwasaki] reports that Okami HD is not just a standard upscaling, but actually renders at native 1080p, with an internal resolution--as my friend noted--of nearly 4k. Meanwhile, the game contains upwards of 13,000 texture images, all of which had to adhere to the above mantra, some of which had to be redrawn entirely," said Greg "GregaMan" Moore back in 2012.