If you are referring to Mikey Garcia vs Manny Pacquiao then i don't think that it would end just like the Ricky Hatton fight. MAnny is aging and is abandoning his recklessness which make him fun to watch so if he fight Garcia i doubt if it will end via KO. This fight with Garcia is very feasible to me and good for Manny's career.
We never know Manny still has the power and the speed I just watched this video and it's very popular now on Youtube it's an analysis How Did Pacquiao Systematically Dismantle Thurman? | Fight Analysis | Pacquiao vs Thurman, you will appreciate how many turn out to be as a great boxer in our era probably one of the best video analyzing Pacquiao's fighting style and strategy.
https://www.youtube.com/watch?v=zD8ode8dy_I
Manny's power is not like the old days man. I mean look at his previous fights, he can knock down his opponent but he can't finish it via KO. Yes he still has the speed to control the tempo of the match but we can't expect KO for his remaining fights.