The NFL and Roger Goodell have announced that Harold Henderson has been named to handle Ezekiel Elliott's appeal. Henderson has handled other appeal cases for the NFL and is viewed by some as being league-friendly. Mike Florio at Pro Football Talk says:
Henderson, by virtue of the fact that the league regularly hires him to provide appeal services, is viewed as someone who will be inclined to rubber stamp the decision from the league — even if he hasn’t always done that.
As a practical matter, the chances of Elliott completely overturning the suspension have dropped significantly.