#4 Annual Championships with grand trophies
The abysmal-looking rewards given to Matt Hardy and Naomi after their respective Wrestle Mania battle royal wins shows how little WWE values annual competitions (ditto for green-colored title awarded to Braun Strowman after winning the Greatest Royal Rumble).
An annual championship represented by a grand trophy, like the NHL's Stanley Cup, could stand in contrast to WWE's frequently-defended title belts and make for meaningful prizes to pursue outside the normal week to week title picture.
Longer-term storyline arcs could be built around such prizes and multi-time winners could be elevated in status without having to hold the traditional belts. This could potentially open up opportunities for wrestlers the company wants to push but may be wary of putting a strap on.