If any genuine spoilers exist, I am not aware of them. If they do, I would request no one share them.
The movies comes out in a month and I am going to predict that:
Jyn dies, having secured the Death Star plans.
Her father, Mads Mikklesen, has intentionally built the fatal flaw into the Death Star because he is forced to design it against his will.
Darth Vader will kill the main bad guy due to his incompetence of letting the plans get stolen. Vader will only appear on screen for…10 minutes or less.
I think the robot played by Alan Tudyk will be hilarious. And I am hoping they have an epic space battle that beats out the Return of the Jedi one, which I think still stands as the best space battle I’ve ever seen.
Wait, Alan Tudyk plays the robot? Movie of the year, then!
My guess is as follows. Spoilers just because.
[spoiler]
*I’m guessing part of the footage we’ve seen of space battles occurs right at the opening, but is not supremely important to the plot. Might be part of busting the girl out of Imperial hands.
*Actually, part of me does hope that Jan Erso doesn’t make it - that she is able to transmit the plans so Leia can pick them up, but that she can’t escape. It would be painful, but potentially a really good story of sacrifice in the face of unfathomable evil. It would also be pretty unexpected.
*Likewise, I hope this villain survives, so he can return in a future film. One of Star Wars’ big strength was having Vader present as a menacing force, if you’ll pardon the pun, in all three films. One of the single things I really dislike in the Marvel movies is their tendency to kill off villains just as they’re getting good.[/spoiler]
I am convinced all or most of the main characters die and I think it will end with a montage of some of the early scenes in SW that ends with Leia uploading the plans to R2.