Anakin Starkiller said:
Someone on Reddit suggested Luke being a ghost all along in TLJ. I suppose it would make more sense than him killing himself for a distraction without doing any damage he absolutely could do. It doesn’t feel like a necessary change to me, though.
I think I wrote a thread like that lol, I will check my reddit post history. Apparently there are a couple of people who have had this idea. I like it a lot.