If Odlanier Solis can get his knee healed up he's by far the best opponent imo.

I'd also love to see how Mike Perez develops over the next couple years. A good future long term prospect imo, although I have no idea how long Wlad will be sticking around for.

Aside from them though there is really nobody and it wouldn't surprise me at all to see the winner of Chisora Fury (so Chisora) lined up for a shot next year.

Helenuis can be sold as a big man, knockout puncher. Big fight down the road.