That's still not a bad total what you two are suggesting, that's as much as fairly good center forward expects to score in 2 seasons
I'll say he'll score less than all the previous 3 seasons at around 30-35 goals, but his overall contribution will remain similar as he'll assist more goals than previous seasons. And i expect one or two of Pedro and Villa/Sanchez to have their best goal scoring seasons because of that.
People seem to forget that messi has had 25 assists this season. That's basically 2 good center forwards scoring 27 and 26 goals respectively plus two good play makers making 12 and 13 assists respectively. Or It's Ronaldo+Ozil