I'm sorry to say but in my opinion these two last chapters were totally useless pieces of c**p. I can't think of them as a part of the story since they are just bunch of scenes like a movie trailer.
That said I can understand that it may be hard to finish a fic after a while so I'm just going to pretend that this one was abandoned after 22 chapter so I can remember as a good one.
I hope we get to read something else from you in the future.