As mentioned by Mikatan, Nendoroid Ultimate Madoka is available for pre-order starting today, and here is the official description:
The ultimate harmony of cuteness and valiance!
From the anime ‘Puella Magi Madoka Magica’ comes a Nendoroid of the ultimate form that Madoka Kaname took after fighting numerous battles over countless timelines – Ultimate Madoka! She comes with both a standard smiling expression as well as a determined expression to show everyone there is always hope!
Her bow and arrow are also included, along with the magical symbols that appeared at her feet whenever she fired an arrow, which allows you to recreate the famous pose with her bow drawn and ready to fire!
She is scheduled for April 2013 release with a price tag of 3500 Yen.
As an additional incentive, GSC also includes a special Madoka-themed Clip Stand as pre-order bonus, ONLY IF you pre-order Nendoroid Ultimate Madoka at either GoodSmile Online Shop or Good Smile x Karaoke no Tetsujin Cafe. XD
If you decided to pre-order on GoodSmile Online Shop, note that the pre-order period will be between the October 16th (Tues) at 12:00JST and the November 14th (Wed) at 21:00JST.