I don't know that he would be anything other than like an emergency Safety, which like Stephens could do that.
And while he has more experience than others, not sure which CB on the roster he takes their place over. He'd be no better than 5th behind Marlon, Stephens, Darby and RYS, and that's assuming we count Hamilton as a Safety instead of as a Nickel.
And when healthy, not sure he'd be preferred over Pepe or JAD either.
I think its pretty clear that the Ravens actually like their Corners. Doesn't mean they won't try to get a better one, but I think they'd be targeting somebody who's an upgrade over at least Darby and RYS, and maybe even an upgrade over Stephens.