I just thought of this and I think it would also fit some of our needs.
If for whatever reason MTH kills the remote for good (before someone says anything, I know, it can take years for this to happen) they can develop and sell a hybrid type system like DJI drone users have:
It's still uses your phone and an app. You can use the phone to communicate to the wiu and select engines for example and maybe even access some basic features using the phones screen, features that are more tactile based like throttle and Brake and horn for example can have physical buttons on a remote versus virtual buttons.
Me, personally speaking, would not mind a setup like this because again it feeds to both crowds those that like tactile buttons and feedback as well as those who find it easier to use a screen to select between different engines Etc.
others have mentioned something very similar to this like a Bluetooth remote that connect to your phone and gives you physical Keys versus virtual keys.
Just some possible food for thought.
Thanks!