Never say never.
He's not being considered for anything right now in the NFL with very few spots still available. It's possible it could be signed to compete with Hamdan for the #3 slot. Figure it'sd be in his and the Bills best interest. he know the offense, he owns a house here, even at minimum, he'd come out ahead of minimum elsewhere as he'd had to sell the house, move, etc.... Might be cheaper to finish his degreee if he never did, stick around another season or two and move on to his likely second career.