Personally, I think Eb will make it for a while longer. He'll probably die eventually, but (in my opinion) he won't until he's a player in two books, back-to-back. So probably not Peace Talks. Maybe Mirror Mirror or Body Slam, depending upon his role in those. But I think Eb's death is going to be a major domino that gets knocked over, and I don't know if Jim wants to start that reaction yet; we're just about to be reintroduced after being absent for three books.
To me, it'd kinda be like killing off Elaine in White Night. "Oh, hello old flame we haven't seen in five books, I would feel very strongly should you bite the dust." It's what made Susan's sacrifice such a non-event for me; I never cared that Susan died, only that Harry was sad about it. For Eb's death to have emotional impact beyond Harry's personal feelings about it, we need to feel something for Eb beyond what we do now. I mean, you see it in TV shows all the time—the moment a character gets the spotlight for an episode or two in a row (especially if they reveal backstory), you know they're not going to make it much longer. It kinda telegraphs it in a lot of cases (Walking Dead was a big offender), but it really made viewers emotional when they were killed, because they started to really get the character.
So, if Eb is to die in Peace Talks, it's going almost have to be a very, very Eb-heavy book, where he and Thomas have their thing, Eb reveals whatever secrets he has left (not including the ones in his journals, because that's also a good narrative device), and we get a clearer picture of his backstory. It is a good time to do the Thomas and Eb thing, what with Thomas about to have Eb's great grandchild, but not sure it's the right time to kill him yet.
As for BOMB DROPS, well, I think we're going to see the Michael and Charity Find Out Molly is No Longer Human Fiasco.
