better protect or even fix it (Spare parts? Replacement screen? Replacement Keypad? Is something like this an option? Would it be compatible with your security model? What about right to repair?), while the company can keep selling stuff, without pushing out a new hardware wallet every year, making last-gen owners feel left behind.
Yeah, I think replaceable parts is the priority. Especially, if they can be replaced with commonly found components, which I don't think any hardware wallet has managed to do. Obviously, the main software, and chip isn't likely going to be replaceable, but I'm thinking about buttons or screens, batteries, and things like that, which could potentially be made via common components found in other devices. I like that idea, hard to pull off though.
Repair, I'd like to leave to the end user, there's a element of trust needed to send your device in for repair, I have the attitude that physical attacks, are quite unpredictable.