Are they in or are they out? Well, nobody seems to know for sure.
Earlier this year, MLS announced a format change for CONCACAF Champions League qualifying (if should be noted that the linked article was taken down at some point on Monday amid the controversy. The article was back up by Tuesday). Here’s an excerpt:
By winning the 2017 U.S. Open Cup, Sporting Kansas City became the first US-based team to qualify for the 2019 CCL, which will be contested in the spring of that year. They’ll be joined in the 2019 tournament by the 2017 MLS Cup winner and 2018 U.