UFC is now merged with WWE. Wrestling organization has a lot of money and they really can offer Ngannou as much money as he want. So one day we might have Ngannou having a wrestling match 
For those who have missed the news: World Wrestling Entertainment is merging with Endeavor Group, the parent company of competitor UFC, to form a new publicly traded company. So far I dont know what will UFC get from that merge. More tv broadcast time? New fans? Lesnar 2.0 ?
I also heard that the owner of UFC Endeavor has bought over 50% of WWE's shares and they stated that the UFC and WWE have now merged and become one container. For those who have missed the news: World Wrestling Entertainment is merging with Endeavor Group, the parent company of competitor UFC, to form a new publicly traded company. So far I dont know what will UFC get from that merge. More tv broadcast time? New fans? Lesnar 2.0 ?
I don't know whether this development can have a positive impact on the UFC or not because these two sports events are very different.
UFC is a free fighting sport that really uses self-defense skills, while WWE is a sporting event that tends to be entertainment because the fights are artificial settings or fights to entertain the audience.
But strangely there are several fighting figures who support the merging of these two sports events such as Conor McGregor and he stated that he wants to be one of the new champions.
But indeed there are some WWE fighters who become UFC fighters as well as Brock Lesnar who fights at heavyweight.
I also saw this news and I confess that when I was reading this news I even thought it was a bad combination, but then I started looking at things from another angle, what if WWE athletes were to start fighting for real without acting but it would be a fight following the rules of wrestling? no doubt this would be something very innovative that would attract attention even from people who like real fights, those moves that wrestling guys do, if it's a real fight without staging, we could see the fights at a very high level, something completely different from what we have already seen. the referee would be someone serious, the judges would also be someone serious, the winners could be decided by knockout and jury decision
with Israel Adesanya's fight approaching, he has given many interviews, at least it looks like that, and in the interviews the guy has shown that he still hasn't resigned himself to the defeats he had, so the guy will come with everything he has to win this one fight, but his problem will be on his psychological side, for example:
“He knows how dangerous I am. He knows I’m not an easy fight. He knows he’s going to have to go through fire, and I’m going to make him fight for his life in this fight”.
source: https://www.fightnewsaustralia.com/i-dont-keep-score-i-settle-them-israel-adesanya-is-looking-to-put-an-end-to-the-rivalry-this-weekend-at-ufc-287/
if Israel Adesanya loses in this fight, no doubt it will psychologically shake him for some time, and if perreira keeps laughing at him or does things that go against Israel Adesanya, then Israel Adesanya will be psychologically destabilized easily and perreira will take advantage this to win the fight