Devin Booker‘s max contract will not take effect until 2019-20, but he will still want to prove his worth even while still on his rookie contract. Thus I predict that Book is going to go all out this coming season, with a mindful focus on reaching the playoffs, although with personal offensive and defensive goals to get the team there.
While offensively his early career statistics can be fairly compared to Kobe Bryant, Michael Jordan, and the like, he is nowhere near their career levels, he has never reached the playoffs, nor has he been able to take a weak Suns team and make it a decent one.