Bryan Singer talked to SFX in an interview published Friday about X-Men Days of Future Past. Unfortunately, the small excerpt of the interview made available made no mention of the Fox vs. Marvel for Quicksilver debacle.
Instead, Singer chatted about his enthusiasm regarding the plot, which he says James Cameron approved of. Singer says that he was dealing with issues of time within the story and that last year while in New Zealand, he pitched it to Cameron (if you recall, Cameron was on a farm writing Avatar sequels) who told him it made sense.
The X-Men director also talked about where the movie fits in the X-Men timeline. Singer said, "We also wanted to play with the notion of different times and stuff like the way that time affects destinies. It enables the film to not just be a sequel to First Class or X-Men 3 but to actually be its own thing."