He has verbally committed to Ole Miss, but not signed since he's just a junior. Don't know for a fact, but I doubt Ole Miss offered based on his pitching. He's exceptionally fast with a good arm, solid outfielder.
I think his offer came right after he ran a blistering 60 (no, I can't remember the time) in pretty cold weather. If he develops more as a pitcher I suppose he could end up throwing for Ole Miss. You can never have enough lefties, obviously, but you're correct that he was not offered based on his pitching first. I suspect they saw him run and had visions of Jordan Henry.
I believe his 60 time was 6.4, which is pretty impressive in those conditions especially. I know Will pretty well. I doubt he will ever see the mound at Ole Miss, but hey, you never know!