The dealers already know what it contains as they were shown it earlier this year, so apart from confirming launch details I doubt if there will be anything new.
The age is probably about right, as is the information about editing, however, to say that most uses stick to 1 finger chord trigger and can’t read music is a complete and absolute total nonsense as most have come from organs where chord play and reading music is common. (Yamaha even has teaching systems for their arrangers)
Producing an SDK is something they should have done ages ago, and if true will really bring Yamaha into the 21st century, that Apple is mentioned is logical as most Yamaha external software for their instruments are for Apple Tablets.
Touchscreen again should have been added years ago, so if correct is a welcome improvement.
As to whether the information is accurate, we’ll those that have seen it had to sign an NDA and most would not be prepared to break it, as it means they could lose the Yamaha franchise, (Which is very lucrative) so best to take with a pinch of salt and treat it as possible/probabilities rather than fact.
It will probably be a surprise, but probably not as people think.
Expect plenty more rumours and so called facts as the launch gets closer.
Bill