Originally Posted by The Infernal
I'm all for having Rogue return, but I don't think you need to explain her having her powers back. X3 already left enough of a hint that the cure wasn't final, plus having McKellen back as Magneto would likely confirm that also.
X3 was six years ago, eight years by the time DoFP is released. How many ordinary moviegoers will remember its exact details by then?
I prefer my version of events where a quick explanation is built into the opening scene!