Though Samsung‘s flagship Android smartphone, the Galaxy S III, has been a huge success for the Korean manufacturer, the company isn’t about to let its dominance of the Android mobile market slip away.

Rumors last year put the announcement of Samsung’s next Galaxy S phone as early as February or May. Today, the latest rumor puts a more specific date on the announcement.

SamMobile is reporting that the announcement of the Galaxy S IV will come on March 15. The report cites an unnamed “trusted insider” as stating the new smartphone will go on sale sometime at the beginning of April. Europe and Asia are predicted to get the device first, with the U.S. having to wait for a May or June launch.

Though the invitations for the announcement event are expected to go out this month after the Mobile World Congress conference, the location of the announcement is still secret, even from the anonymous source. Last year’s announcement of the Galaxy S III took place on May 3 in London.

SamMobile is the same website that provided the supposedly leaked image of the Galaxy S IV back at the beginning of January. The device is rumored to have close to a five-inch screen with a 1920 x 1080 resolution.

(via BGR)