I sort of felt the same way with Han's death as I did with Qui-Gon's. I suppose I should have seen Qui-Gon's death coming since we know Obi-Wan trained Anakin and that the Jedi would eventually be wiped out. But, in the course of the movie, it wasn't until Obi-Wan was separated from them in the final duel that I had a bad feeling about it. In TFA, once Han took off on that final mission, I thought he might die, but was still hoping he wouldn't. In ROTJ, when Luke was trying to get through to Vader early in the movie, I thought there might be hope for him to come over to the light. So, it was great when he finally did, but sad that he died as a result.