I'm not sure. If you have an average of 6 X 16 graduating per year, then you are supplying almost 100 cadets per year and we definately do not have 100 upgrades per year from SO-JFO. And SO upgrades as we know depend on what is happening down the line.
Nope. My "forseeable future" is 5 -8 years and I'm happy to be corrected and I'd love someone to dig out this post within the next 8 years and be able to say I was wrong.