Samsung is sending out invites to an Unpacked event scheduled for September 4th. The invites hint the event will introduce the next Galaxy, which is presumably the Note III. The Note II was introduced at the end of August last year at a similar event.
The main event will take place in Berlin, ahead of the big IFA conference which kicks off in the German city on the 6th. Samsung will hold a companion press event in New York City which will feature hands-on time with the devices and a livestream in Times Square. The festivities begin on the 4th at 7PM Berlin time (1PM in New York).