Yes, I don't see her caring enough about her father's death (and not even by MW's hand) to bring don her kid's father. Though I suppose she could decide blood=thicker than water and help her family because of that. I really hope Seungmo is not shot by Min Woo (I really think they may be a remnant from when they were going to go into a different, daddy Jr direction with his character). I also agree - Miju is the only non-bitter/vengeful/evil/screwed-up person and I hope she stays this way.

Re: time jumps. I don't know, If I were them, I'd wrap this up in mid-1990s and have the rest as a postcript. But I am not writing a hit show so what do I know :)