Harrah's Entertainment will change their name to Caesars Entertainment. The name change will be a part of their upcoming IPO. Back when the company was taken private in 2008 this exact same name change was announced but never completed.
I guess it makes sense to change the name of a struggling company, but I'm not sure it will really make that much of a difference in the grand scheme of things. They definitely want to take advantage of their flagship brand, and a name change to Caesars will certainly achieve this.
Source: WSJ.