There has been, and still is a lot of bad made fake pictures and videos floating around, and also quite a lot of wishful thinking and speculatyions. Specially after the arrival of Korg's PA5X.
The only ones that knows, is the inner circle of Yamaha's staff. So best tip is that we have to be patient and to wait and see.
Maybe 🎼🎵🎶 Santa Claus is coming to town ...🎶🎵 sooner or later.