There are several axioms in product marketing.
1) You never launch any product in August.
2) If it is a consumer product, it needs to be in high gear by Christmas.
3) If it is a product used heavily by schools, it needs to be orderable before the fall term starts.
We are already past 3), and I'm not sure that the educational market would drive product timing for SONAR.
I have a bunch of titles that seem to be beyond their normal upgrade interval. I expect it to be a busy September. Notice that Izotope is Launching RX3 in September:
http://www.izotope.com/pr.ucts/audio/rx3/index.asp