Conceicao is one of those guys who is fast so looks skilled but in reality he's pretty basic. He doesn't counter punch like most speedsters and Shakur is going to time him eventually and start countering his head off. Conceicao also relies on a high guard when defensive and Stevenson is very skilled at guard manipulation and he'll just create holes in that guard and rip him to the body and then head. This might be competitive for a few rounds but once Stevenson has his timing, he's going to dominate.
I doub't the fight will be real, not fixed.If they won't make another sparring like Canelo - Golovkin, then Conceicao could make Shakur look bad
First 4-5 rounds might be competitive, but Shakur will run away with it in the second half. 118-110/117-111 type of a fight imo.