Wilson has already served 16 games of the suspension, administered by the league for an illegal check to the head of St. Louis forward Oskar Sundqvist in a Sept. 30 preseason game. But reducing the suspension, which initially cost Wilson more than his 2018-19 salary, will save him approx. $378,000.
NHL Commissioner Gary Bettman upheld the suspension upon appeal by Wilson in October. The suspension was ultimately reduced by an independent arbitrator. Wilson can presumably return to play immediately, although it's unclear if he will after missing nearly a month and a half of hockey.
Independent arbitrator has reduced #caps Tom Wilson's suspension from 20 games to 14. Wilson gets back $378,048 in lost salary. Eligible to play immediately, but effectively a 16-game suspension because the process took so long from Sept. 30 (!) hit.