It has been confirmed by Caroline Skinnner, via SFX that the Ice Warriors will return, after many months of speculation and rumour, penned by Mark Gatiss.
The Ice Warriors last appeared in Doctor Who in The Monster of Peladon right back when we were still watching Jon Pertwee fight Earth's enemies, albeit, their status as a "monster" gets called into question through the Peladon serials. Can they return to their villianous selves in the second half of series 7 like they showed in their first appearance in (the so imaginably named) "The Ice Warriors" against Patrick Troughton?
Skinner continued by saying: "We wanted to bring them back because they’re wonderful!. In the mix of stories that we were planning for this year it felt as if doing something very bold with a monster that hadn’t been seen for a while would be really cool. Mark is an enormous fan of the Ice Warrior stories and came up with the idea.
The sense of a monster of that scale and that size trapped in a really small, contained environment such as a submarine was a really brilliant story to be able to tell. And obviously we’ve had a huge amount of fun going back to the traditional designs and recreating them, bringing the Ice Warriors back to life again.
They were such a beautiful original design, and are genuinely really scary in terms of what they look like as they’re coming towards you in that armour. Letting a huge Ice Warrior loose at the heart of a classic Hunt For Red October style submarine movie was exactly the kind of story that the Doctor should get mixed up in.
They’ve got really scary voices as well. I spent quite a lot of time on set trying to hiss like an Ice Warrior…”
You can see the SFX article here.