I think there are a few takeaways here. Lin, the Xing prince, is taken over by Greed (or does he take over Greed? we're not sure). It's interesting to see this unrolling. Also, the fact that the father of the homunculi is looking quite like Van Hohenheim is significant and important. Two more things of note: the meeting between Scar and Marcoh, the tattoo on Hawkeye's back and the fact that the Father of the Homunculi stopped everyone from transmuting except for Scar and the Xing girl. Ok, that's three.