Penny is special, as should be fairly evident by the fact that they bothered to give her synthetic skin, and is also a super prototype that may never be replicated. As compared to these robots who are mass produced models

And yes, it is. I know I figured that out about five minutes after seeing the Black Queen virus teaser. 

And as I expect it, the White Fang and Cinder's faction will try to take each other out on the verge of victory, and Roman will go along with her so long as it's in his best interests to do so.