What is Elijah doing back? Daniel Gillies gives us some insight (but not much!)

There’s been a lot of speculation about the return of Elijah. Why is he back? Does he want the cure? What does he want to do with it? Does he want revenge for Kol? What about Elijah & Katherine? Or is it Elena?
So much speculation!
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Exec producer Julie Plec is vague about what Elijah is doing back: “The first glimpse of Elijah, your heart explodes, you’re so happy to see him. And he is quintessential Elijah, dressed in his beautiful suit with his lovely demeanor, and, as always, trying to find ways to keep Klaus in his place and keep his family together.”

And Daniel Gillies isn’t helping much either!!
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“There’s been a lot of talk about what I’m returning for and to do,” Daniel Gillies says. The episode’s synopsis simply states that Elena has a “surprising encounter” with Elijah in Pennsylvania, where she and Rebekah are headed in their search for Katherine and the cure. “All I can say is tune in,” Gillies says, “because Elijah’s gonna shock and possibly even horrify a few. In fact, I’ll say he’s gonna horrify many. But franky, I don’t care. I think what he’s doing is wonderful.” (source: insideTV)

Horrify many? Now our minds are working on overload! Just what is Elijah up to?

All we know is that it’s going to be a long 6 days before we get to see what he’s up to in “American Gothic“