I am still hoping to see functionality added for Hive Engine tokens! I would love to be able to manage the whole wallet via ledger for active key transactions rather than just hive and HBD.
I use mine not as a cold wallet but as a way to secure the higher security keys to allow posting still.
The latest version is waiting for ledger review and when it passes it - keychain team will start implementing the support so in the end you will be able to use your ledger device with any frontend and app that supports Hive Keychain :) It just takes time.
This is awesome news!