Lucasfilm
If you don't want anything spoiled for you, stop reading now.
For months, allegedly leaked plot details for "The Force Awakens" have said the story will focus on Luke Skywalker's original lightsaber, the one he lost when Darth Vader chopped off his hand in "Empire Strikes Back." The lightsaber fell down this deep pit:
YouTube/LucasFilm
Now here's the real potential spoiler. Don't say we didn't warn you:
According to the leaked plot details that were first published on Badass Digest, Luke's old lightsaber makes its way through space and onto a planet where two of the new main characters Rey (played by Daisey Ridley) and Finn (played by John Boyega) find it. Rey and Finn recognize the lightsaber as a Jedi weapon and go on a search for Luke, who has been in hiding for several years.
Well, it looks like that leak may be pretty close to correct. In the new teaser trailer for "Force Awakens," we get a clear view of the lightsaber:
Lucasfilm
It's definitely the same one:
Terry O'Neill/Getty Images