FrAndroid web site, which suggests that any announcement at the event will be related to the Android OS. While there is the strong possibility that the event has something to do with the Samsung Galaxy S III, it also could be related to Samsung's Google TV product. The latter device is expected to be the subject of an upcoming private event. Or it even could be an event related to the regional launch of a Samsung product other than the Galaxy S III.
Still, as long as there is a chance that we could see the most eagerly awaited Android model for 2012 during this event, we suggest putting a big circle around March 22nd on your calendar.
source: FrAndroid (translated) via UnwiredView