Well... that's a bombshell.
It's going to be
very
difficult to replace Carol. I don't think replacing her with a computer would be a good option - it would make things quite lifeless. Susie Dent doing both numbers, letters and Dictionary Corner might not be a bad thing, but ideally there should be a different person in each role.
With regards to reasonably intelligent celebrities who might be able to host it, Myleene Klass might do well as the letters/numbers bod, as she's an intelligent and multi-talented presenter who I think would have respect for how the show works and its background and culture. As for Des's replacement, I've so far thought of three candidates:
-
Clive Anderson - good presenting skills. Sufficiently bald to be accepted without question
-
Simon Mayo - a bit of an offbeat suggestion, but he has a good speaking voice and is quite good as a TV presenter.
-
Stephen Fry - very popular. A fan of Countdown himself. Is Google on legs, so would be perfectly suited to the job.
These are only my own suggestions. I had thought of putting Alison Herd back in Dictionary Corner and putting Susie in the presenter's chair, but with (what would most likely be) three females, it could turn out feeling a bit like
Loose Women
(but without Joan Rivers accidentally saying 'f*ck').
It might be a good opportunity to give the show a visual refresh - obviously the basic set design would have to stay (there'd be complaints if it didn't) but perhaps they could try something a little different this time. Perhaps a warm red/orange/brown look might work well. The theme tune could also do with being re-recorded: not like
this, but perhaps it could be made a little more pacey, and perhaps jazzed up a little with an (?electric) guitar and piano.