The significance of such an iconic role might be a little more meaty than what Ty Tennant is currently ready for, especially given that his father David Tennant was the first (and arguably the best) Doctor of the modern reboot.
And as previously mentioned, Georgia’s father Peter Davison was the Fifth Doctor during the classic run of Doctor Who.
Not to mention his mother Georgia Tennant played the Doctor’s cloned daughter Jenny in Season 4 of the reboot.
Doctor Who is like a rite of passage for many UK actors, so it’s not the biggest shock to learn that Ty Tennant wouldn’t turn down any offers to take over as a new Time Lord int he future.