I think it’s possible the show will take a break, but I bet it’ll be back sooner rather than later. But also,

probably someone to run it who grew up with David Tennant as the Doctor, rather than Tom Baker."

Those people exist now. 21 years ago Mark Gatiss (now 59) was 38 when he wrote the third episode of the 2005 revival.

So a 38 year old now, 21 years ago, was 17. That’s growing up range.