Maybe you should also consider adding and/or updating something for Keystone 3 pro, since now they have 3 options for firmware,
BTC-Only, Multi-Coin, and they recently added privacy oriented Cypherpunk firmware that supports Bitcoin and privacy coins like Monero.
I think I don't need to update the website, because the website is bitcoin oriented, and the important firmware is the bitcoin-only one. The new one is similar to the altcoin firmware for the website focus.
Do you by any chance know any bitcoin wallets that work for smartwatches, or bitcoin hardware wallet in watch format?
I don't know any smartwatch wallet. I think it would be a very bad idea, like the Tangem Ring.