#2 This could help the WWE creative make the Demon King more frequent on WWE TV

Finn Balor is one of the few Superstars who has an alter ego and his Demon King avatar is still undefeated in the WWE. The creative team could use Balor's alter ego to help him win the title by defeating Brock Lesnar in the title match. Balor could use this gimmick more frequently as the Universal Champion than he is doing currently.
The Demon King last made a surprise appearance at WWE SummerSlam 2018 where he squashed the Lone Wolf Baron Corbin in a singles match. Balor has defeated the likes of Seth Rollins and AJ Styles with this alter ego and the Demon King needs to appear more frequently to keep its mystique alive as its constant absence could lead to it becoming an afterthought.
Cody Rhodes' uncle is a WWE Hall of Famer. More details HERE.