If people call EpVIII a ESB rewrite because it’s the dark chapter I’m going to flip shit. Get ready, because it will be the dark middle chapter. That’s how it works. It’s not just ESB.
The “leaked” title is almost 100% BS. Don’t get worked up about it.
Return of the Jedi has a double meaning. Until you see it, you’ll just assume it’s referring to Luke. You might even speculate it’s Obi-Wan. (I know an early draft had him returning from the dead physically.) But you won’t know it’s really about Vader until you’ve seen the movie. So it’s actually kind of a brilliant title.
Jedi is also singular and plural.