Let's jump in the wrestling time machine to the year 2012 when the "Beast" first appeared back in the WWE and compare the company from then to now. In my opinion I think that the company is in a better position now then it was when Brock first returned, but his presence is wearing thin in the company. The main difference between the company now and then is the pool of talent now is leaps and bounds better then it was at one point.
Currently, the company has names like Finn Balor, Kevin Owens, Sami Zayn, Bray Wyatt, Braun Strowman, Lashley, and various others waiting to either get back into or debut in the main event. Adding to that the company has Adam Cole, Ricochet, Johnny Gargano, Tomasso Ciampa, Allister Black, and many others waiting in the farm system. In a way I think that Brock leaving will be a blessing for the WWE as it would help open the door for others to step up that otherwise wouldn't have had the chance to. Either way though I think it's time that the WWE begins to set up a plan for the company after Brock walks away. In my opinion the best thing that they can do right now is write WrestleMania on a piece of paper writing down matches and coming up with the best plan and how to get where they want to go. Now I don't think this will happen, but it is fun to think that the WWE has some sort of a plan in place once Brock heads back to UFC.