Well now, this is unexpected.
The newest Variable Fighter book is actually two illustrated stories.
The first, set in 2039, is a prequel to Macross Plus that details the development of the YF-19 and includes familiar characters such as Guld, Lucy and Yang.
The second story is set in 2068 and follows up with some of newer characters from the first story as well as an older Yang.
Still have yet to really go over the text but at first glance there appears to be a lot more to this book than anyone was expecting.