I'm not sure, but I don't see Hale getting much bigger than 260, which is around Carp's weight his senior year, and when you add in the fact that Hale is an elite athlete with linebacker skills, I don't see why it's crazy to see him in that role.
I see him staying Big Ten, and in the Big Ten, linebackers are usually 240 and ends are usually 260-280, so Hale couldn't definitely play a Carp role.
Edit: As a freshman at Ohio State, Carpenter weighed 240 pounds. Hale could easily play that role IMO, or he could easily play MLB. If Schlegel could play MLB, considering his size, there's no reason to think Hale couldn't.