Not gonna happen.
The 'i' meant 'internet' in the case of the iPhone, borrowing from the name of the iPod (in this case, the 'i' meant 'intelligent').
The iPad's 'i' have the same meaning as the iPhone.
The Watch isn't primarily used to connect to the internet, so there was no need for the 'i'.
Neither does Apple Pay.
I think that it was a bad move not to think of a more inventive name or just use 'iWatch', and that it has damaged sales of the Apple Watch.
Personally, I like the new naming convention better. It's simple and looks and sounds more professional to me. i-Device has been around for a while and has started to be used with derision, so moving away from it was probably the right move.