According to retailer Mangaoh, a 2nd 「Magical Girl Lyrical Nanoha」 theatrical film is in the works. It will be formally announced at the 「Lyrical☆Party IV」 event held at the Saitama Super Arena on November 23rd.

In addition, a second game for the franchise will also be revealed. The game promises to feature characters from both the ViVid and Force manga series.

The first Nanoha film, 「Magical Girl Lyrical Nanoha -The MOVIE 1st-」, will be out on BD and DVD November 26th.

[Source]