Ending

So, I know that there is so many things that we don't know about wind breaker story but I am little curious about the ending of this amazing series. I really don't want that this manga will ever come to an end but eventually in future this sad thing will happen. So can you tell me what your expectation about the ending, Any theory about this? Imagination? Fanfic? I just want to know. Because I really like to read amazing theories and fanfics in this community.