Over the course of his career Laine has scored 388 points in 480 games which is .81 pts/game and would work out to 66 pts. in 82 games.
Now being an optimist, if Laine stays healthy and Dach stays healthy and Marty can work his magic on a player who hasn't been mentally healthy then certainly 75-80 pts is not out of the question. I think Marty is a confidence builder and will play a huge role in Laine's success this year. Finding a good fit on the other wing will also be important (assuming Laine and Dach play together).
I find it interesting that in Laine's 1st 3 years he had more goals than assists whereas the last few years he has had more assists than goals. Perhaps his passing ability is somewhat under rated as we tend to focus on what a good shooter he is.