If you have the time, go back and watch the Owens/Zayn stuff from early this year. They had a great feud in NXT before Zayn got (legit) hurt and Owens got called up. If I were a betting man, I'd wager that Zayn will come back at the Rumble and begin another feud with Owens that will culminate in a Wrestlemania bout. Just some great chemistry there.
I also think Zayn is one of those guys who has "face of the company" potential. He's got a ton of charisma, a great chant, and the in-ring ability. I could definitely see him and Owens headlining a major PPV for the main title someday in the not too distant future. Owens is great, but he'll never be a "face of the company" type. He could easily be the top heel, though, and given how good he is at being a heel I think he'd be totally fine with that.