Scherzer is now 60th among all-time pitchers in the JAWS metrics for making the HoF. He's obviously a HOF'r though I'd guess not on the first ballot. The only thing hurting his case is that he's only throw around 2,300 innings. Figure another 4 seasons averaging 175 innings and he'll get another 700 before he retires.
For comparison:
Roy Halladay: 2749 IP, 3.38 ERA, 2117 Ks, 203 wins
Scherzer: 2290 IP, 3.20 ERA, 2692 Ks, 170 wins
Scherzer is 24th all time in Ks, he'd have to hit 2833 to crack the top 20.
The awards is where is really shines: 3 Cy Youngs, a 2nd place, a 3rd place, and two 5th places in the last seven years. Led the league four times in wins, twice in IP, 3 times in Ks, 4 times in WHIP, twice in games started, three times in complete games, twice in shutouts, and three times in K/9.
His post-season numbers are pretty solid as well now:
18 starts, 4 relief appearances, 112 IP, 3.38 ERA, 1.134 WHIP, 11 K/9