They won't probably aim for the 'result' but for the money instead. For sure this would be a huge one likewise when Floyd fought McGregor. No matter who wins the fight, profit for both fighters would be earned. With that being said, this will also be a hot topic for gamblers out there.
I think it is not quite fair with this fight. If we are facing a two different athlete with different sports on their field this is quite uncomfortable to them well Manny will not fight to McGreggor in this Octagon, BUT if we see this in vice versa what if McGreggor vs Pacquiao in a boxing ring it's a good thing still this is impossible unless they will release a large amount of money. AFAIK for this upcoming match of Senator Manny, he is going to retire its been a long year he is fighting to the Filipino Pride I think this is the time he will give the spotlight to Donaire.
McGregor wanted this fight. That just means that he is aware of the match being unfair which supports the fact that he is not just after this fight but after the fact that this match will generate millions and millions of money. In terms of retirement, I don't think this will be his last one. There are a lot of times that people are talking about retirement but Manny is just looking at what he can do as long as he's still kicking.
There will be a mismatch given that they are from different leagues. This ain't street fight wherein a player would only consider skills. Rules, capabilities and kind of training would matter. But as I've said, I doubt any of this player would aim for the victory, they know to themselves the gap between each of them. This is more of a 'celebrity fight', hoping you guys are already getting my point. Won't make a speculation on who will be victorious, but will rather enjoy the fight.