My thoughts on Fullmetal Alchemist Chapter 105:
It seems like part of my long-running theory was correct, and part of it was wrong. I did get right that what Hohenheim did all those chapters ago when he spilled part of his Philosopher’s Stone out into the ground was part of his plan to defeat Father, and that he would activate his plan when it seemed Father was unbeatable. However, it was not part of the reverse array after all. The question becomes, did Hohenheim always intend to make the reverse array and he just stumbled into the others working on it or did he not know about it yet until Alphonse brought him the news about it in Lior? Either way, enough of my theory was correct to make me satisfied, even though it does seem a little cheesy that he can still use the souls as active participants.