Hey, remember Kingdom Hearts HD 1.5 and 2.5 ReMix? Those were great, weren't they, especially for younger players who may have missed the Playstation 2 KH games. Well, those HD remixes landed on PlayStation 3, and that was some years ago.
While many people still have PS3s, I know a lot who have moved on to PS4 and still want to experience Kingdom Hearts before the latest entry hits store shelves, Kingdom Hearts 2.8 HD, which is also a PlayStation 4 game.
"The time has come!" as the walrus says, and Square Enix has seen fit to announce that Kingdom Hearts HD 1.5 + 2.5 ReMIX, which combines the entirety of both the initial HD collections. Playing through this, as well as 2.8 in January 2017, should be enough to catch up any newcomers before Kingdom Hearts 3 is (finally) released.
Square Enix even went so far as to put a solid date on it: March 28, 2017. Make some room on your calendars, these giant collections will take some time to get through, juse in time for Kingdom Hearts 3, sometime later 2017.