All we can do is wait until the new Yamaha child arrives. Speculation on what features the keyboard may or not have tends to cloud a person's visions of what really arrives.
Good Luck,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)