Anything is possible for Conor after that last win in UFC, and I must admit that I did not expect him to win in that express way. I think that if he stay focused he can win against Pacquio but this is totally different game now.
Though this might not happen. Manny Pacquiao listed 3 names that he will possibly face this year and Connor McGregor is not one of them. Also, Mayweather is back at it again where he says he will not fight again, excuse? He is retired.