Producer Simon Kinberg has already discussed pretty much everything you could want to know about "X-Men: Days Of Future Past". One thing he only briefly touched upon before though, the role of Anna Paquin's Rogue in the film, he has now elaborated on.
Paquin's character only shows up for one very brief cameo in the final film. Speaking with Empire, Kinberg confirmed that an excised sequence was developed in which she was to be a central figure. Bryan Singer has previously said it was edited out for time and hopes it will end up on the home video release. So what was it?
MAJOR SPOILERS AHEAD
The first part of it we've already heard about - Future Professor X, Future Magneto, and Iceman teaming up to rescue Rogue from the Sentinels. The other part follows the injury that Kitty Pryde (Ellen Page) sustains during the film due to Wolverine's claws. Rogue steps in to absorb Kitty's powers so she can stay stable, keeping Wolverine safely in the past.
When the first part of the sequence was cut, the latter became useless so Rogue's appearance in the bleak future was cut altogether and Kitty Pryde stayed on to keep Logan in the past. Speaking about the excision, Kinberg says:
"I thought it would increase the urgency and the stakes of the plot in the future, but it actually does the opposite, because it makes you feel like there is an answer out there. You think once Rogue gets here, we’ll have an unlimited amount of time. The ticking clock that we’d established with Kitty getting wounded and losing her powers... well, Rogue would show up and press stop on the clock. So for all of those narrative reasons, there was this ten-minute subplot that had to go."