Re: X-MEN: Days Of Future Past (Casting, Rumors, Pics till release)
From the article...
"I can't say. I don't know yet. And it's not necessarily a deal making aspect at all," he said. "I want to make sure it'll make sense. But I love working with her."
Doesn't sound like she's "being shut out" at all. There could be many reasons why she may not be involved. From availability and prior commitments, to just not having a place for her in the story, to just having too large of a cast already.
I hate having thoughts on the top of my head. They usually jump off and commit suicide.