“Are there things you’d like to see new that an update might address or are you looking for “good faith” from A&H that they will continue to support this product?”
Of course, there are such things. The Feature Request Forum has many good ideas, from simple usability enhancements (example: “Talkback-like Behaviour” for Mix Buttons) to real extensions (example: more Matrix Busses).
It is unlikely we will see bigger extensions. At least, Firmware Upgrades cannot break Hardware Limits and A&H will likely not want to risk breaking well working things by adding complex Features or making structural Changes. Those Requests may be considered as a User Wish List for future Products/Models but not for the existing Hardware.
But there have been smaller Extensions which are very usable – example: DCA Spill – and if A&H sees an easy Way for such a thing they may do it because it makes customers more content and content customers are the best Marketing Option that exists.
Also, Bug Fixes and Adaptions to new Hardware Components may still be needed in some cases, so I’m sure we will see that as long as there is at least one Production Line for SQ Consoles.