"Naturally some aspects will need to be refreshed"
I guess that is where the fear that this won't do well comes from.
Instead of re-envisaging the characters to fit today's political world, it'll just be the same but using modern terms and events.
But equally, is the current way of politics that interesting or funny?
The enjoyment of the original shows is the clever language and arguments, the intellectual mind-games that went on between Sir Humphrey and Jim Hacker. My worry is that, as politics these days seems less high-brow, so too will the new version of the show be dumbed down. And with that, it will loose its appeal.