Granted, Jack Bannon’s Alfred could still grow up to look like Sean Pertwee’s Alfred, although we’re not sure why that would happen considering doing so would only confuse Gotham viewers.
Those hoping for Pertwee to reprise his role as Alfred in Pennyworth flash-forwards or connections to Gotham shouldn’t get their hopes up as it’s been established the shows exist in separate universes.
Sean Pertwee, of course, could probably knock on either’s door without the media’s help as he’s worked with both Bruno Heller and Daniel Cannon on Gotham for five seasons.