Pacquiao will win this, but I don't think he can KO anybody anymore. He hasn't KO'ed anybody for the longest time and I don't think this will change in his next fight. Though probably there is chance he can KO, but I really doubt it. Especially now, he changed since he started boxing. He doesn't have that hunger he had before.
The last time I saw Manny Pacquaio pulverizing much his opponent is during his fight against Antonio Margarito. After that, majority of his next match is kinda playing safe and the aggressiveness had been minimized. Im sure since he holds the Pound for Pound King for a long time, he is not that more on the target but for what his promotor said who will be his next fight. I follow Manny prior to his journey on defeating Mexican boxers. He really aims for that and all he think is go for a knockdown. His first target is to defeat Marco Antonio Barrera and he succesfully did it. If you will watched again the match, you can how deadly he is. And that deadly performance follows up to the following match. I don't think that because of age he became slow now. He is still fast and quick.
During his successful days and already earned lots of money, he became worried now for his fellow countrymen who spend big just to buy a ticket to watch him live. Imagine OFW's are earning for their family but there is always a time that those OFW's will purchase ticket just to watch him. That's why to make them pay, Pacquaio didn't want a knockout for at least 7th to 8th round which is not good because he is holding back, this is to give his fans a more time to watch without realizing that all his fans only wants a KNOCKOUT and it will be paid off. Now I don't see any exciting feeling when there's a Pacquaio match. In the past while during his fight, all the streets are clean because they are watching Pacquaio's fight but I noticed this past fights that not all are now interested to watch since, aside from his opponent are not that popular, every fight is now for money purposes. The spirit of deadly boxing to him is now gone.
Sorry for the long read (as if you read), just reminiscing the time.