Joe Smith will be Adonis Stevenson future opponent...

After he fights Thomas Williams, Adonis Stevenson will fight Joe Smith. Just an educated prediction.. Not just yet; he still has the mandatory defense against Eleider Alvarez, before the WBC can set the eliminator for the formal new mandatory challenger. Joe Smith Jr is likely a future opponent for Stevenson, but that fight is easily three fights away (vs Williams Jr, Alvarez, and the Kovalev/Ward winner for early next year). Still, if things go the way I think, Joe Smith Jr is likely to have some fights to get his fully ready for the shot; Tommy Karpency/Chad Dawson (in a supporting spot on the coming Jacobs-Mora card in New York), the WBC final eliminator against fellow New Yorker Marcus Browne (on a show to close out the year/open next year in New York), a last style check by Spring 2016 (to prep for whomever wins the unification fights), and the a shot at the light heavyweight title come Summer 2017. Depending on the timing of everything, he may not get that style check.

Adonis don't want that work

After he fights Thomas Williams, Adonis Stevenson will fight Joe Smith. Just an educated prediction.. I think Stevensons contract specifies that his opponents must be declared clinically dead before he fights them.