Honestly, even though a lot of people are worried about either Eiffel of Minkowski dying in the next couple of episodes, I’m not even the least bit concerned about it. A lot of the concern has stemmed from the apology scene between them, and the painful trope of two estranged characters making peace before one of them dies. However, Gabriel has said, on multiple occasions, that if Wolf 359 is about anything, it is about the relationship between Eiffel and Minkowski. He has also said that he has the very ending of the series already planned out in his head. These two facts imply, at least to me, that the end of the series will involve the two of them. This trial by fire seems to me to be another chapter of their story, not the end of it.
The other characters, I’m not as sure about, but I also don’t think they are going to die. Lovelace still has so much story behind her, so many questions that have as of yet gone unanswered. It’s possible that they could be answered in the next few episodes, but given everything else that we know is going to happen, it seems unlikely that these questions will be answered well enough in so little time. Hilbert’s death is possible, especially if he used the chair, but I just don’t think there was enough buildup for it. Similarly, I can’t see Hera dying either. There was no buildup, and besides, Maxwell has already shackled her. Killing Hera would benefit no one at this point.
The SI-5 squad is trickier, but I also can’t see them dying. Kepler has a lot more story to tell, similar to Lovelace. His death would leave a lot of loose ends, and it wouldn’t hold as much emotional impact as another character death (and we all know Gabriel is about that Pain™). Jacobi’s death would be a bit cliché, in my opinion. Paired with his line, “Let’s go be monsters,” and the uncertain events of Time To Kill, his death now would be tinged with the theme of the valiant hero slaying the wicked beast. And, correct me if I’m wrong, but Gabriel isn’t really a writer of heroes, in that sense anyway. Maxwell is tough. Honestly, if anyone was going to die in the next couple of episodes, my money would be on her. She has had an arc, and I could see that arc ending here, with us disillusioned at the very end. However, I think that she also has an amazing potential to build from here, to switch directions. So, I don’t think that she is going to die either.
In summary, I don’t think anyone is going to die in Desperate Measures or Boléro. I think we are going to suffer in a very different way.