So my friend @sunlikesdrawing and I have been talking a LOT lately (I already have several new headcanons/theories I want to talk about that I've gotten through our DMs in just the past couple days, it's insane and I love her for it) and, as one does, we ended up talking about the possibilities for tomorrow's episode.
The first thing we have to consider is that Fenn will almost definitely call headquarters to report Greenley crashing. Greenley doesn't want to be there, Fenn certainly doesn't want him there, and, yes, he does have first aid supplies, but Greenley is pretty severely injured and would probably need (or at least highly benefit from) more advanced care. So unless his call doesn't go through due to the storm (in which case he'd probably just. call later), he'll most likely call to try and get Greenley out of there as fast as possible.
The main two variations of how headquarters could respond to this is if they do care or they don't care. Now, I do have a theory on what could happen if they do care, but I think them caring is a much less likely possibility and. Honestly that theory is much more convoluted than the "they don't care" one so I'm gonna hold off on that one unless something drastic happens lol.
Ok so! Them not caring. Why? Besides Sona being...Sona, that is. There are actually quite a few reasons (many of which were pointed out to me by @sunlikesdrawing). Greenley is severely injured, and Faroff Station is both very far away and currently undergoing a storm bad enough to have caused a car accident (for someone who knows the route extremely well and has been there dozens of times too!) He is, to our knowledge, not someone who fulfills any super important role. All we know is he delivers supplies to Faroff. Faroff is not a significant post. Nor is Fenn someone they care about enough to be losing any sleep over whether or not he receives supplies. So...it's probably more effort than it's worth to send people all the way up to Faroff just to extract a single unimportant soldier who could end up dying from his injuries anyway! (And again, Sona is Sona.)
What's less important than why they don't care is how Fenn would react to this. He's already very emotionally volatile at the moment because of the conversation he just had with Tobi (also witnessing a car crash), and he's already questioning his loyalty to Sona. Even disregarding this, Fenn has a strong moral code by his very nature. He has consistently been motivated by principles of fairness, of compassion, to the point that he has put his life at risk for absolutely no benefit to himself except for his belief in those principles (and his love for Tobi, obviously, but he was still helping him even when he disliked him entirely) multiple times. And that's for an enemy that he isn't even SUPPOSED to care about, not a fellow soldier that he has an actual duty to! It would just be yet another challenge to the black-and-white propaganda he's been fed all his life -- if Sonans are noble and good, why is Greenley's life not important enough? If Vaylinians are wicked and evil, why was the only Vaylinian he's ever met so worried that he was willing to put himself in danger just to help him? He's already been seeing the holes in the argument even when it ISN'T staring him directly in the face like this.
So, yeah. Sitting there and watching a man suffer in front of him while he hears headquarters tell him it isn't worth it logistically to save his life has a real possibility of being a big Realisation moment for him. (Sun also proposed him possibly blowing up at headquarters and getting extremely pissed over them not sending someone, which! I really really like, obviously predictions become less and less likely to happen the more specific you get but it would be sooo rewarding...)
Anyway! This was a lot of words just to communicate a theory for tomorrow's episode/the next couple episodes that could probably be summed up in a few sentences. The point is mostly that Fenn is already teetering on the edge of his faith in Sona and while I don't think this would be the straw that breaks the camel's back or anything (I'm still riding on that letter from episode 96 being the thing to do that), it would be yet another much-needed sign that Sona isn't what he thought it was. Character development in small steps, not large strides 🫶
P.S. Fenn losing his source of supplies could also give another reason for him to keep interacting with Tobias. Yes, he has his garden, but he can't exactly live off of carrots and tomatoes, especially with a patient who needs to be well fed so he can heal. He's not in any dire need right now since he just got a delivery, but eventually he might have to ask for help from Tobi.