I'm enjoying my YC88 keyboard. Wrote a reply a couple of days ago, but it didn't show up here. At risk of repeating myself, I would LOVE an update for the YC88 which would include:
1) Steel Pedal guitar
2) Bluegrass Fiddle - especially the attack portion, where bowing techniques can be used to sound like a fiddler
3) Drum kit
4) Bosendorfer grand piano

It's probably too late for this next update, yet for me, these 4 sounds would be awesome!
Thanks for passing this on to your Synth Wizards! 🙂