None of those things are that important, Diki, I've become accustomed to working around the lack of a chord sequencer, and I doubt very much if we'll see one in the near future...and, if we do, it might be on a Korg or perhaps a Yamaha (who never had it) as Roland seems to have dropped it for good.
The guitar NTT are okay as is, and since I do 99% of my style making by swapping parts around, I don't feel it would be
that important.
I'd like more SA1...the SA2 do not decay when you hold down sustain pedal...I like to use the sus pedal as a volume fade....I like how Yamaha's
panel voices respond to the sustain...the GM/XG voices do not have this characteristic.
I would appreciate a patch hold so there would no glitch when changing, although I have a very good workaround that involves swapping voice 1 and 2 locations for the right hand sounds.
So I'm pretty content, and willing to wait and see.
I put in my contributions to Yamaha Japan, but I'm just a little spoke in a very big wheel, so I really can't say how influential my input would be.
Ian