I'd like to know if this will help enable support for more authentication methods at boot time for unlocking full disk encryption, such as Yubikey challenge-res

I'd like to know if this will help enable support for more authentication methods at boot time for unlocking full disk encryption, such as Yubikey challenge-response or smartcard PKCS #11. Sort of a drag if you're using token-based login but you still need to memorize a password for FDE.