Fingers crossed. This is actually great news!
Let me suggest that you set up a poll for 'most wanted fix' / 'most wanted feature'.
There have been many good suggestions here on how to expand the concept of the Tenori-on. Some are within its frameset both conceptually and possible with current hardware, and should of course be taken spacial note of. Quite a few people seems to want the Tenori-on to be something else! Although it is probably possible to implement some of these more 'generic sequencer' features too, I hope Iwai san will be consulted so that the original mindset of the Tenori-on is kept intact, even with new development added. Some requests are probably not possible to meet without a hardware upgrade. That would mean taking your Tenori-on apart and reassemble it. I wouldn't mind doing that I guess, so please don't rule out a hardware upgrade kit!
What issues are the most burning for most people is diffucult to gauge without some kind of poll, er even a user survey. Thanks for any effort!
(For me, I guess Layer copy without going through menus (i.e. something similar to Block copy) is on the top list, as well as independent scale selection for layers; at least a choice of 'master scale' and chromatic. Riff transposition on a Layer via one button and a double click . . . I'm sweating now

)