If you use something like 1Password maybe setup an email address only you know about that you send yourself (from the new email) an encrypted zip with your 1Pas

If you use something like 1Password maybe setup an email address only you know about that you send yourself (from the new email) an encrypted zip with your 1Password Emergency Vault? Then you have 3 bits of data (4 if you don't save your master password which we can assume you know) protecting your backup: account name, account password, zip password, and vault master password.