Bachus, there have been several occasions when Yamaha has queried it's customers, including via this particular forum with it's Yamaha Asks threads. The last one of these I recall was put forth by Steve Demming of Yamaha, who also monitors this and other forums regularly.
Additionally, many of the features that arranger keyboard players asked for actually came to be in ensuing models. I really don't believe that any manufacturer is trying to hide something or deceive it's customers. In fact, I'm fairly confident that if they had anything new available, they would be sounding the drums.
All the best,
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.)