According to the most recent reports out of Japan, Nikon is planning to announce the flagship Nikon D6 DSLR in less than a week! The official announcement of the D6—which is rumored to feature in-body image stabilization, better video, and more—is now expected on September 4th. Previous rumors indicated that Nikon was going to announce their flagship full-frame DSLR sometime in October, but Nokishita is reporting that this date has now been moved up to September 4th: This is almost…