A little bit of hope and maybe wishful thinking, but I don't think this version of the story will go the incest route. In the childhood picture and in his childhood memories the his "sibling" looks like a boy, and when comparing his memories with the picture of her from the hospital she clearly looks like a little girl with a short haircut but not as short as in his memories.
I also don't think Korea is ready for the incest storyline and they tend to want to sugar coat things. And although the stories are essentially the same the KMY/JK take on the leads is so vastly different than the J-version.
I think the theme that "love heals, and even brings fourth forgiveness" would be so much better than the original.
I feel you. NO next week epsidoe 15-16 is the last week