The obvious choice is Sami. Unless he gets a call-up. I'm not entirely sure there's a place for him there, yet. It's still too crazy with the current storylines on Raw/Smackdown. It makes sense to take your NXT rookie from Montreal to Canada, and your Arabic speaking NXT rookie to Abu Dhabi. But whether this will manifest into a full-scale call-up isn't clear yet.
But if he does get a call-up, I'm willing to guess that Graves will have a brief, bland reign. Or maybe Ohno, if he's gotten himself back in the office's good graces. Apparently they still think very highly of him except for his love handles.