Theoretically, his goals should increase, but his assists should fall off a cliff based on his S% and 5on5 numbers.
If I were to predict the remainder of his season, I would guess 15G, 10A for 25 points over the next 37 games. That gives him about 68 points on the year, which is in the range of where I'd expect him to be on a regular basis, just with more goals and less assists overall.
If you can find someone who thinks he's a 75-80+ point player and get that kind of value, I'd make the deal in a heartbeat. To me he's a 60-70 guy with many peaks and valleys.