Tipped to us on our Discord server, we came back to the arcade vendor website we usually browse for upcoming arcade Taiko releases, ultimately facing the grid entry you're looking up here for a scheduled March 2020 release for the next one.
This time around, however, it looks like this is going to be a much bigger deal than usual, with a pack of new tech to mount into pre-existing Taiko cabinets for an effectively new machine! More specifically, the update kit reported here mentions the inclusion of replacement parts (monitor, system board, upper LED sign) and a game SSD/QR Reader, together with this release being just called "New Taiko no Tatsujin" instead of using the color-coded format we're used to see since the early 2010s... all of which leads us to speculate that the third Taiko arcade generation of gaming spect is about to come to an end!