Ok, so this is far from a certainty, but I'm opting to get really excited now even though it may mean being horribly disappointed later : AbFab may come back!
Jennifer Saunders isn't currently working, because she's in treatment for breast cancer, but it seems like she's been kicking the idea around with Joanna Lumley. BUT she's not making any statements about it at this point (which is understandable- she got bigger things to deal with), so she may never opt to advance it past the "kicking the idea around" stage. Plus, who knows if June Whitfield, Julia Sawalha and Jane Horrocks would necessarily be interested in coming back.
But who needs a measured and reasonable perspective on the situation? AbFab may come back!
While we're on the subject of fashion comedies, on this week's ANTM Tyra (who is basically a parody of a parody of a parody of herself at this point) aired her directorial debut. And it is...so many things. Mostly it's like a really bad student-level art film. But there's a wonderful segment around the 1:15 mark where Tyra seemed to ask herself "What if that girl from The Ring had been FIERCE and SMIZED?"
It's one of my new favorite things.