wait what?A decrypted rom of Mario Odyssey is already on the internet soooo
Or we can just wait for emunand (which should come this year) and hope that, people will dump everythingWe will be able to decrypt future games fine, as long something like xecuter's mod really does work for all future fws.
But keep in mind, newer fws can add new features, and if a game truly requires these new features, it won't simply work on an old fw even if we decrypt it.