What if Luke and Leia weren't siblings? What if they were together? Even though the revelations in The Empire Strikes Back and Return of the Jedi are great, it's worth noting that that was not necessarily the original plan. Luke and the princess shared a rather demure kiss in the first Star Wars movie, a perhaps not so demure one in Empire, and there was even a book that went on the assumption that they were romancing- Splinter of the Minds Eye by Alan Dean Foster. Which I'm sure makes interesting reading today!
As great a couple as Leia and Han are, I've wondered what Star Wars would have been like if Vader was not Luke's father, and Luke and Leia had been a thing. I think I like that idea better- sure the farm boy turned Jedi knight meets and wins the princess is a bit tired, though it wasn't quite as tired back when Star Wars came out. It could have worked... and after Return of the Jedi it might have been interesting to see how things went with a romance between the last Jedi knight and the leader of the New Republic. Does Luke go off into seclusion, does he stay around and form a new Jedi order, or does he hang with Leia and help run the Republic? That would have been fun to explore.
Or Vader can still be Luke's dad, that doesn't mean Luke and Leia need to be brother and sister. It wasn't until Return of the Jedi, after all, that we find out they're siblings.
They were just making this up as they went along, although obviously by the end of Empire Han and Leia were a couple. I'm just surprised at the ambiguity here if they were going in that direction.
I think Luke and Leia work better. The Leia and Han thing seems rushed. Yeah I know Han's the scoundrel. But I think Luke and Leia are the better couple.
So... what do YOU think?