#1, no.
I voted Clear #3, but I could hear an argument for #2B. Also, he could be the outright #2 depending on Hayward's health. There's a small-but-real chance that Hayward is never the same. There's a larger chance that Hayward returns to form, but takes significant time - possibly as much as the whole season - to get there. In either of those cases, we probably see Brown as the second-leading scorer for much of the '18-'19 season.