This decade he's behind the McDavid tier, and behind the Matthews/Eichel/Dahlin tier as a prospect. Doesn't mean he can't exceed people listed above him like Drai did, when he was rarely even mentioned among the top 3 of his draft class. But, I would think McDavid, Matthews, Eichel, Dahlin, and arguably MacKinnon would comfortably go ahead of him. Bobby Mac pretty much eludes to as much in his write up of this years draft rankings. He's clearly ahead of RNH, Yakupov, and Hischier and probably with Hall and Hughes grouping of top picks in recent years.
I think he's the most surefire pick in this draft, and the safest to reach a high-end. But, I won't be shocked in 3 years if we see someone else like Stutzle from the top end of this draft being better like we do with Pettersson and Makar for 2017 or Scheifele/Couturier for 2011.