I've read rumors about this for awhile, but this is the first time I've seen it in print.
https://www.northjersey.com/story/sports/high-school/wrestling/2019/02/06/college-wrestling-mac-and-ewl-conferences-merge-next-year-george-mason-coach-says-rider-mizzou/2797383002/
Now the other rumor I've seen, but haven't seen it confirmed, is that Missouri would host the conference championship every year.
If so, that would be incredible.