Really hard to project. Greatly depends on if he signs next year or in 2 years, if he stays healthy, if he grows upon this year or stay consistent at 30-35 goals, ~65 points. But if I had to guess, Van will want to give him a full 8 years and if that is the case they'd prob try for 6 mil a year. I could see Boeser wanting a shorter deal with higher AAV (maybe 4/5 years, 7 mil per.)
Those figures figure he'll improve slightly over the next couple years. If he were to cement himself as an elite player (hit 40 goals/80 points/etc he'll likely get a Draisaitl contract.