Board Thread:Sonic Boom/@comment-27785317-20160331165342/@comment-679780-20160403180241

I see, he does look like a cross between Boom Knuckles and Thrash.

Ian Flynn originally stated in Sonic Universe Graphic Novel Vol. 3 that Thrash was meant to be another rogue of Knuckles' which could "throw down with Knuckles and have it mean something", which oddly enough, did not match up with Thrash's role in his debut in Sonic Universe #11. However, this was later conveyed during the Endangered Species story arc.

Maybe Nixus will be that role.