Howling:New Daleks extra weapon?

I've read on several places that the new Daleks have some sort of super weapon at their back which opens up and spins round. Now, I've only heard and read about it, but I've not actually seen anything from any source. Can anyone tell me where this has come from? Also, if it is true, do you think it will be like the Special Weapons Dalek when it is set up? --The Thirteenth Doctor 17:18, August 30, 2010 (UTC)