Bleacher Report projects Saints to draft Clemson QB Cade Klubnik (late round prospect)
Every clickable (read: non-paywalled) story I can find doesn't seem to contain any firm reason he'd have for appealing for another year of eligibility. This is in contrast to Diego Pavia of Vanderbilt, whose case for another year (which has been temporarily granted, btw) was based on his juco experience. He was claiming his juco years shouldn't count the same way his NCAA years do.
So far, I don't see where McCord seems to have a case to return to Syracuse. In any case, he's only a mid-round draft pick right now AT BEST.