Joyce beating Dubois has actually turned out to have benefited Warren. Joyce is now quite a big star and a attraction and Dubois fortunately appears to have come out unscathed and is being built back up. Both are on separate paths to big fights. If Yarde can beat Arthur (if the rematch happens) in a close fight, than Warren has won again by Arthur winning the first fight. Yarde can go on and there won't be any damage to Lyndon who can be put in another big fight straight afterwards.