Your question is not very clear, I hope you don't mean that hardware wallets are usually being shipped with some "default" seed phrases and passphrases.

I would advocate generating new seed phrases and a passphrase for your newly acquired device before transferring your funds from the old wallet. Otherwise, why invest in the new model? You should expect that the level of randomness generated by the new model is superior to that of the old Trezor. Consequently, the new seed generated by the new model is preferable.