The tweeted photo
GSC President Takanori Aki just tweeted a photo of the sculptor team smiling happily in front of their desks.
At a glance, there is nothing notable to be seen there. Let’s zoom it in a bit …
See the circled area?
Well, what do we have here? An interesting paper containing a Nendoroid’s face design is spotted there. There are some Nendoroid face plates laying there on the desk.
A Nendoroid face design was spotted
I am quick-guessing that the Nendoroid face design is intended for an unannounced Nendoroid Takamachi Nanoha, as I have compared it to Nendoroid Takamichi Nanoha: The MOVIE 1st version, which was released back then on 2010.
By the way, here is the original tweet by Aki-san:
Well, what do you think about it, Nendonesian? XD
Nendonesia 
I have the first Nanoho so I’m curious to see what she will look like but I wish the made the other characters like Arf and the boy in green I forgot his name ……
I believe that it is “Takamachi” if I am not incorrect.
Editing the post ….
Thanks for the correction! XD