Quote Originally Posted by SilverDragon
There's a theory going around on the TFW2005 thread where that image is from that it was just a proof-of-concept model used to demonstrate the HA gimmick.
From post #5 of this thread:
Quote Originally Posted by GoktimusPrime
"グレーの部分が新造されたパーツである。このサイズで製品化するということではなく、おくまでヒ ューマン アライアンスのコンセプトを伝えるための試作モデルとなる。"
This text states that although the grey parts are new, it doesn't mean that the final product will be done in this scale and that it's just a conceptual model.
kthanks. (-_-)