The Lefko article above seems to imply it. Why? He writes that "Tay Cody and Karikari will be the DB's this season." Since we already know that the corners are probably Gordon and Anderson, we already suspect that Shaw (gasp!) will return to be the starting safety, and we already know Cody played halfback with Kornegay, the implication is that if Karkiakri "plays DB with Cody," it will be at halfback.
Interesting shift, if it in fact happens. What do you think?