As McDonald’s Corp prepares yet another plan to revive its business, company watchers have the following advice: reconnect with lower income consumers who remain faithful to the brand, improve wages and ease the financial burden on operators. Steve Easterbrook, the company’s new chief executive, on May 4 will announce his plan to reinvent McDonald’s as a “modern, progressive burger company” that is more responsive to global diners’ increasing demand for fresh, less processed and more customized food.