I don't really want to replace it. It works fine. But the toolchain for other platforms is becoming difficult to manage. I use pass with PGP Yubikeys as backing for each encrypted password. But the developer of the Android version has stopped supporting it and the person who took it over has removed yubikey support because he doesn't use it himself and doesn't care about it.
Of course I need to access my passwords on Linux, Windows, Mac, Android. Only iOS is not possible because Apple doesn't allow raw APDU access to NFC tags so you can't do OpenPGP functions.
I also don't want to use a password manager with a single master password like bitwarden. I want each password to be encrypted individually with the public key from a number of hardware tags (multiple, that's also a hard requirement). This way not my whole password database is instantly leaked when my master password gets compromised. Even when my endpoint gets completely compromised, the only passwords they will have are the ones I decrypted on it since it was compromised. Yubikeys require a physical touch for every decryption so you also can't 'milk' them for credentials when they're inserted and unlocked. Also, any password manager I use must be self-hosted, I hate and don't trust the big tech companies.
I wonder if this could be a new backend. And have support on all platforms (though iOS I don't care about personally, but it would be a nice to have).