Hello,
Did you encrypt internal drive or external drive. If you were encrypting internal drive, it would always get encrypted with the passphrase and not the key so even if key gets revoked you do not have to worry.
If virtual disk or email encryption was being used, your revoked key would be able to access the virtual disk and mails that were previously encypted with it however if you want to encrypt new mails drives, it would not do that and you would have to create new key.