After he beats Herman, Jacare should fight Weidmann. That way Weidmann can quit thinking he's unstoppable. Jacare would crush Weidy. Standing, Weidmann doesn't have the power or to out technique Jacare for too long. On the ground, Weidmann loses a limb quickly.
In the unfathomable chance that Jacare loses to Herm, give him the loser of Bisping/Vitor (Bisping). Or hell, he could still fight Weidmann. Weidmann would be coming off an injury and Jacare would be coming off a loss. Which in the eyes of most MMA fans would make him a nobody. The perfect kind of opponent for a "back in action,", "warm up" fight that Weidmann would need coming off an injury. Even though Weidmann loses to Jacare 98% of the time.