Had they done a 4th with Leslie in the Early 2000's, they could have still had Nordberg and not have OJ Simpson come back for it. They could make it where something happened to Nordberg where he's undercover, and his cover is blown, resulting in him being badly injured to a point where he's wrapped in bandage from head to toe, and he has to have plastic surgery, mainly on his face. Nordberg emerges from plastic surgery and when he is unwrapped, he looks like either Samuel L Jackson or the late Carl Weathers. For comedic purposes he sounds like one of these actors too.