*shrugs* It's pure guesswork on our side at this point.
Personally, I kinda hope "something happens" with Zak. I mean, the whole thing is working toward it, if nothing happens at all, it'll be a lot of writing and time, for nothing in essence.
Not condoning Zak's actions or objectives here, but from a story standpoint, it'd be like climbing a huge mountain, stopping short from the top, and going "fuck this, I'm going back home", it simply wouldn't make any sense in my opinion.
So far, the dev hasn't not been shy of approaching bad situations head on, so I'm hoping it'll keep it up. It's a refreshing change to see a VN not afraid to deal with some uncomfy shit the way this one has.