#4 The uncertainty surrounding Brock Lesnar's UFC return

In an ideal situation, Cormier would have loved to sign off with a big-money super fight against Brock Lesnar. However, the former UFC Heavyweight Champion has his hands full until WrestleMania and even beyond the specified time-frame, there is nothing set in stone.
Reports suggest Lesnar has signed a new deal with WWE that could keep him with the company for the foreseeable future. But, his aspirations of returning to the Octagon can't be undermined.
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Lesnar would first have to clear $250,000 in fines that need to be done in order to get his Nevada State Athletic Commission (NSAC) ban lifted. We aren't panicking though as Lesnar is one rich man who can surely afford the sum.
There is nothing concrete in place and that's not good for UFC's business. The matchmakers have a ready-made fight in Cormier vs. Jones III that requires no exaggerated hype whatsoever. Lesnar may get in more moolah, but the trilogy can also compete in terms of profitability.