I wondered about that, since according to the blog, Jeremy's lost his voice a bit. Which means that Richard and James can mock him mercilessly for it, and Jeremy can barely say a word in defense. Or they'll wait and do it again next week, when he (hopefully) has his voice back.
Poor Kristin Scott Donkey passed away some time last year too, he mentioned that in his Times column from 21/10/2007. I'm not sure who the current Clarkson donkeys are though, and I've no idea as to Eddie's status
(and no, I don't have a strange obsession with the Clarkson donkeys... I just like donkeys generally and have a memory that retains the most random things!)