According to CBS Channel 8 in Las Vegas, Steve and Elaine Wynn are divorcing.
The couple are heavily involved in their company, Wynn Resorts. Both are on the board of directors and their decision making is visible throughout their projects. Elaine is often credited with many of the concepts that have evolved into major resort features, from 'Mt. Wynn' all the way down to the uniforms on the restaurant and cocktail servers.
Steve has often indicated that much of the design, be it guest rooms or public spaces, is heavily influenced by a female point of view. There's a much repeated story about picking glass based on how the color would make female customers look, an example of how important they consider these things. I'd argue that this has been a very big part of the successes they've seen in their resorts.
It's not clear if Mrs. Wynn will remain active in the company, though in the past she has indicated her intention to do just that. I've met her only in passing but from what I have read about her, she just seems like an incredible woman and I personally hope she remains involved.