Steve and Elaine Wynn are ending their marriage, but the business partnership that built Wynn Resorts into a Strip powerhouse is not breaking up. After the Wynns divvy up their community property, including a 21 percent share of company stock, Elaine Wynn is likely to have a more defined and independent role in the company, requiring her to get a gaming license as a major voting shareholder, a knowledgeable source close to the divorce case said.