After the new trailer made its premiere on Saturday, all kinds of rumours have been flying around about Series Five. Firstly, although the actual transmission date for the series hasn't been confirmed yet, many blogs have been saying that it is likely to start on Saturday 3rd April, which is during Easter. When there's official confirmation, I'll post it here.
Also, it has been rumoured that James Corden (Smithy from 'Gavin and Stacey') will be starring in an upcoming episode. This has been speculated after he was seen filming in Cardiff, but this hasn't been confirmed yet.