For weeks now we've been eagerly anticipating 'Doctor Who's' 2012 Christmas special "The Snowmen," what with the recent photos, trailer, and espeically the revelation that 'The Hobbit' star Ian McKellen would lend his voice to the proceedings. Yet come Christmas day, the special will end and we'll be left wanting until the latter half of series 7 returns in 2013! So what teases does series creator Steven Moffat have to offer of the coming episodes, and what about the 'Doctor Who' 50th anniversary special?

Get ready Whovians, the Time Lord action won't stop with 2012 'Doctor Who' Christmas special "The Snowmen." Series showrunner Steven Moffat recently spoke with SFX, delivering a number of teasers on the 2013 episodes, including the final 50th anniversary installment, which is rumored to bring back a number of past Doctors.

According to Moffat, the latter half of the long-running sci-fi show's seventh series will include everything from "modern urban thriller," a "base-under-siege story in a new way," one set on "a fantastic alien planet, which is looking absolutely amazing," a "really cracking ghost story," Neil Gaiman's "creepy" Cybermen episode and one titled "Journey To The Centre Of The TARDIS" that features more of the famed ship's interior than ever before. Additionally, esteemed actress Diana Rigg will appear in a "monstrosity of nonsense" period drama episode.

But what of the famed 50th anniversary episode? "[The finale] has got some serious fanboy-pleasing going on in it," says Moffat. "My aim for it – which I’m about to humiliate myself at the tone meeting by saying – is to have slightly more than you think could possibly happen in one episode. Slightly more treats than you think you could be allowed…”

'Doctor Who' will return with his new companion Clara (Jenna-Louise Coleman) in the upcoming Christmas special, but tell us what you want to see from 'Doctor Who' series 7 in the comments!