The best characters are the one who catch you off guard. You think they know who this person is and where their narrative is going. Then there is a switch in the narrative and the character goes off in a surprising direction. When done well, this out of left field change in the character arc has the potential to shock the audience and up the dramatic ante by 100. When not done well, it can turn off the audience.
The new Star Wars firm, Star Wars: The Rise of Skywalker hits theaters in December. As they are during the lead up to every film in the franchise, Lucasfilm is mostly mum on the details. But then they slip a delicious nugget or two into the trailers.
At this point, there are any number of theories about Dark Rey (Daisy Ridley). Is this a vision of what will or could be? Is this the ultimate manipulation of the dark side? Will we learn that Rey is actually a descendant of the late Emperor Palpatine (Ian McDairmid) and has a family?
At this point, there are so many possibilities. I could theorize all day, but I think I will let J.J. Abrams work his magic and tell us in December.