Brock's matches are big events, like his UFC fights. The title matches are big, but only sometimes. Having Brock defend the title 3-4 times until Wrestlemania will bring the title back to prominence. Constant defending and switching hands makes really knocked it down recently.
Heyman can carry the title around when Brock is not there just so it's presence is felt. You can close out a PPV with a #1 contender's match, make that seem like a big deal like how it used to be.