If you look at the previous fight, Haney prioritizes distance more and he is not in a hurry in carrying out his strategy. We can see when he attacks and is about to be countered by Kambosos he immediately keeps a safe distance and always starts from the beginning. On the other hand, Kambosos has been carried away to Haney's battle scheme which makes him unable to avoid and ultimately loses in absolute terms.
The moment Haney dictates the tempo of the fight, Kambosos already lost the match. So this coming match, Kambosos shouldn't let Haney dictates the pacing of the fight. Kambosos must come up with some strategy that will make him nullify Haney's attempt to dictate the tempo.
Kambosos needs to initiate that and be more aggressive not just allowing Haney to take over and keeps his fighting style dominates, Kambosos chance is to keep trying to break the defense of Haney and also avoid those counter jabs to make a good numbers with his score cards, he already have an idea if how Haney fought so his camp needs now is to bring something unexpected for Haney, Kambosos camps needs to bring him a sparring partner who got similar fighting style of Haney.
He needs to find ways to find an opening and make Haney to make a mistake and engage with their exchanges of punches.
Also, Kambosos must not approach Haney directly, he will be susceptible to jobs and counter-attacks. Kambosos must approach Haney at an angle where Haney's counter is ineffective. It needs fast reflexes but it is worth practicing.
In the case of Kambosos everything changes, because if I were Kambosos I would not look at social networks or anything that had to do with general statistics, because I would simply be disappointed and obviously when seeing numbers and statistics anyone gets demoralized, for me Kambosos have a lot to gain, and Haney has a lot to lose if he loses, so for me this fight, if there is one, will be very interesting, because we will see a Haney who will be very pressured, and Kambosos as one of the boxers who will win the most if he wins, it is something obvious, because Immediately more opportunities will open up for him, he will have many more opinions of business models where he will always want the win-win.
On the other hand, knowing what is the talk on social media and making use of it as fuel to better himself isn't a bad thing. Kambosos should just humble himself and let his fist do the talking. About the benefits of a rematch, I think it goes either way, if ever Kambosos wins, I am sure a rematch will happen and by that time, it is Kambosos who will have to lose a lot and Haney will be the one to gain a lot. And that is one of the function of a rematch, for the loser to have a chance to regain whatever he lost in their 1st match.