Requiem question

i think that it's pretty confidently implied that she ends up with Alex, the ending for julian and everyone else - that's debatable.

for me, i'm just honestly interested with the continuation for the others. i feel like hanna and the other supportings is still ambiguous

Well, that's probably because there was no ending. Not really. The author likes to have open endings, but she's not very skilled at executing them. She simply stopped writing, assuming that people would imagine their own outcome.
So essentially, whatever you think happens, happens.
In my opinion it was completely stupid and lazy - a way to not actually have to resolve anything she started, but in the mind of the author, whatever you think happens, does. If you want her with Alex, she goes with Alex. If you want the rebellion to be successful, it is. Etc.

I know that it's all suppose to be symbolic and all that jazz but what was the point of having Grace come back? What happened with Hana? I just don't like how there is absolutely no revelations at all!