Isolde who made the map did a lot of work on Atlas so there's not been many major updates to Crystal Isles in nearly 2 years, last update was October last year and that just fixed a few bugs and added owls, gasbags & gachas, last time the map was updated was July 18, there's a couple of biomes that needed to be completed plus the stuff WC will want removing, it also needs a lot of optimising as it melts cpu's, Eldritch Isle kills my PC with all the effects going on so god knows what'll it'll do to base PS4's ?
So no, it wasn't ready on PC and just needs certification for the consoles