Unvote
I'll keep my focus on the characters.
Though it's a bit of a spoiler, I think it's unlikely that both Ling and Greed are in this game as separate characters. There was another Greed, but if Ling is here, he's not. Edward, Alphonse, Winry, Mustang, and Scar are all about as obvious choices as it gets since they are all major characters in the series. Apart from them, I can see all of these as options, though I'd also include Alex Louis Armstrong (pretty likely), Olivier Mira Armstrong (less likely), Izumi Curtis (pretty likely), Riza Hawkeye (pretty likely), Tim Marcoh (less likely), Shou Tucker (hard to say how likely), and Solf J. Kimblee (less likely). This will add a lot to our complications.
As for eliminating some of the outliers from the list, I think it's worth recognizing that, with 8 players, not every one of the seven deadly sins will be present. I've basically eliminated Greed based on the overlap with Ling. Pride, Lust, Gluttony, and Sloth all play comparatively minor roles, so their likelihood of being here seems pretty small to me. Barry the Chopper seems pretty unlikely as well (though I think he has better odds than these sins), as does Maria Ross (hence my uncertainty regarding Pie's claim).
So if we're just focused on the likelier ones, we still have well over 8. I don't have any thoughts yet on the theme based solely on my own role and Pie's, though I think it may become more obvious as we get more claims.
