Speaking at yesterday's press screening at the BFI for the 2014 Doctor Who Christmas Special; Last Christmas, Steven Moffat confirmed the title for Episode 1 of Season 9 of Doctor Who.

The episode is titled 'The Magician's Apprentice' and will begin filming, together with the rest of Series 9, in January 2015, for an expected airdate of Autumn 2015.

[Source: BFI]