A chord sequencer... Now that Korg have resurrected Roland's best feature (albeit not quite as well), perhaps you won't feel guilty ripping this idea off..?! Make sure the chord sequences can be saved and linked to Performances, make sure that the CS transposes when you transpose the keyboard, make sure you can choose whether the CS records fills and style and division changes, and you will be able to say it is even BETTER than the Korg version!
A global Reverb Offset. There is a HUGE difference between what the European 'sing-along' and the casual home user considers an appropriate amount of reverb, and what gigging dance-floor musicians need. To HAVE to edit every single style, every single Performance, to bring these into the more dry (the room you play in has its OWN 'space' that the audience hears added on to whatever reverb is put on to make the style sound ambient in a dry furniture filled home) space live pro's use is a PITA.
Yes... punchy, in your face dums. Drums that make you think a REAL drummer is playing right next to you, not in some isolation booth, compressed, reverbed and played back in the control room.
I think a way for third party style developers to have PROTECTED style formats, that only allow a limited amount of user editing and NO ability to save to an easily cracked area of user data. Give talented style creator the ability to MAKE A LIVING selling styles that can't be handed out like party favors by its first legal purchaser will create an explosion of content the like of which we haven't seen since the 80's.
Probably whizzing into the wind... but magically, your competition (and even other Divisions within the Yamaha organization) seem to be able to make a profit from arrangers with 76 notes. To be honest, what's the POINT of a 'Pianist Mode' when the keyboard of all TOTL and MOTL Yamaha arrangers have insufficient notes to actually PLAY pianistically?
And I already posted this in the Pt.2 post, but it might be better here...
I would like to see a combination of the loop and arpeggiator features from keyboards like the MoXF combined with the normal arranger functions from the Tyros series. They are quite different in sound, and functionality, but I feel that unless we want to lose the younger generation to WS's altogether, at some point or another (the sooner the better, as far as I am concerned) we need to be more inclusive.
....
You need to find whoever designed the original DJX (not the awful MkII) and have him design something using this century's synth and arranger technology. Then stand back while the orders flow in!