I've thought about the future of the two belts for quite some time now and honestly ive feel the best senerio to unify them into one is to let none other then Paul Heyman.
Lesnar beats Cena at SummerSlam for the WWE WHC. The next night on RAW in the middle of the ring sits a trash can Lesnars music hits but out come Heyman dragging both titles along side him with the biggest smile on his face. As he gets in the ring grabs a mic and cuts a promo only as Heyman can.
Ladies and gentlemen my name is Paul Heyman and My client BBBRRRRRROOOOOCKK LESNAR has done it all. He has beaten down and broken everybody who has been put in his way. He is THE 1 in 21-1 he has put down the likes of HHH, The Big Show, CM Punk and last night he maimed the face of the WWE John Cena and became THE NEW WWE WHC CHAMPION! But my client is above both of the hunks of trash. Lets start with this WHC it hasnt meant anything since the likes of Ric Flair and Sting. The WWE tried to piggy back its legendary lineage handing the belt to HHH and its been worthless ever since. And as for this WWE belt its been disgraced with spinner belt after spinner belt that even CM Punk couldn't save thanks to The Rocks big ego who introduced this terrible looking pile of garbage as he takes both belts and throws the away.
Heyman continues The WWE hasnt had a championship that has meant anything since 2002 since Brock beat the snot out of The Rock and sent him packing to Hollywood. Ladies and gentlemen welcome to The Era of The Beast he is your NEW WWE WHC he is the 1 and the only BRRRROOOOCCCKK LESNAR!!!!
Music hits Lesnar hits the ramp wearing a belt similar to the Undisputed belt from 2002. Heyman can continue his promo saying brock is the new measuring stick he is the gold standard he is brock lesnar.