I disagree, I think he'll compete for the 13th spot next season.
All things considered, my guess is the Penguins lose either Maatta or Schultz in the expansion draft. I'm guessing Maatta. I think the seven forwards we protect is going to be Crosby, Malkin, Kessel, Hornqvist, Sheary, Guentzel and Hagelin. I doubt the others are taken by Las Vegas.
So basically your top-six will probably consist of Sheary, Crosby, Hornqvist, Guentzel, Malkin and Kessel. The bottom-six will most likely be Hagelin, Bonino (or another third line center), Rust and Wilson. I think there's a chance Sprong makes the roster, same with Sundqvist. If Sprong does, I think Kuhnhackl is the 13th forward, if he doesn't, there's a very good chance Rowney does. He's good defensively, can play all three forward positions and can kill penalties. Seems like a good 13th forward.
Sheary and Guentzel are both expansion draft exempt.