Effy's trailer has just been released, Cook and Cassie get their own episodes too.
Really glad to see Emily and Naomi back in it for a bit, they have always been my favourite part of Skins. That said, could have really done with a whole episode focusing on them. Cook was always pretty engaging too, so will be cool to see how his stuff plays out after how series 4 ended.
Main thing I'm hoping for is some more excellent soundtracks, found so much great music from the earlier series.