So far almost every worst generation appeared in the main plots like kid, law bege, drake on luffy side, hawkins & appoo on kaido's side, even Jewelery bonney on egg island. So what about urouge, what can we expect from his role?
I'll say this. Urouge beat a Pacifista in Sabaody, making him the strongest Supernova in the arc. He was about to beat up Killer, but X Drake intervened. He also beat a Sweet Commander during the timeskip, making him comparable to Dressrossa Luffy before Return to Sabaody happened.
Urouge can't be weaker than the others. He's going to have a really high chance of winning if he's fighting anyone weaker than an admiral.
