Highly anticipating this - for several years I'd assumed they wouldn't write another Bottom, much less it being on the BBC*, so I'll say it came as a bit of a surprise!
With them stuck on Hooligan's Island, if it's similar the stage play (sans messing-up the already flimsy plot

), be interesting to see if / how they manage a whole series as a two-hander, and in practically one scenario.
That said, I've always considered 'Hole' from Series 3 - with the two trapped on a ferris wheel at midnight for the entirety - to be a great episode. So, if the writing's good...
* To be honest, I'd have expected the Beeb to turn it down. A big-in-the-90s, what some might call 'cult' sitcom with an ageing cast, two marooned central characters who get on each others nerves... And yet by some miracle this one's back on its home channel of BBC 2.
And so it should be - but I do wonder what prompted it... Sudden interest in the audience it used to attract? Or someone decided that actually, they didn't want Dave picking this up?