As for his future role, it depends what he does from here . The White Sox aren’t going to commit to him long term based on a few games. OTOH, KC pitching can’t be that much worse than the rest of the league. Maybe his hot streak just coincided with them on the schedule.
I personally would like to see more consistency, but with the weather, and age of the season, we will need time to determine that. He is doing a heck of a lot better than I thought possible a couple of years ago. But his status a part of the next Sox contender still has to be in the air. Other than the KC games, he is a DFA candidate so far this year. Give him ABs and see what happens.