You are talking as if Deontay Wilder ended his career with that match but the truth is careers as good as Wilder don't end like that. Some fighters in the industry like McGregor, Pacquiao, Golovkin didn't let their blemish record define their career and look they still manage to win some games. Yeah a rematch might not be soon to come since that is how hype fight works, promoters will tend to dodge everything for a long time so that they can heat things up for the fans. Fury has the privilege to choose his next match while Wilder will go in a different route to reclaim in order throne and that's how it works for both of them.