Moving forward to our main antagonists, the Orcs of Dol Guldor. From what we can gather, the next hobbit movie, or the one after that, will have some sort of big old battle in Mirkwood. So this will hopefully be an accurate guess as to the participates.
The first hobbit movie introduced the new "hunter orcs"
The first orc will be a hunter orc captain from the Hobbit rulebook, and the 2nd will be Bolg. The enemy from the battle of five armies. From the 1-2 photos we have seen from the movie versions, his character could predominately be situated around Dol Guldor and the white orc could carry over to the battle. We will have to see.