The Star Wars formula
1. Good guys run from bad guys
2. Main characters split up
3. Sequence involving sneaking onto enemy ship during space battle
4. Plot twist?
5. Climatic battle with big villain
6. Good guys unite once more
I thought Luke was a force ghost at first, but then they reveal he was doing some astral projection. But then I guess he dies because it uses too much of his power. So I'm just left wondering why they didn't just have him show up as a force ghost