The shin armor that came with Saruman looks a lot like the ones with Grishnak. If I remember right, they never actually said they would offer a body, just the armor pieces and head. According to this, the only pieces not provided so far are chest and lower abdomen/crotch guard.
As cool as this seems, I missed on the head, standard, and gauntlets so only have the shin armor pieces. I am hoping they just put out some "generic" orcs at some point.