FSI Russian

Firstly, thank you for this great resource. I am using FSI for French and German right now.
Will FSI Russian be uploaded? I heard FSI Russian is very good. On a related note, will FSI Spanish Volume 3 and 4 be uploaded? I've gone through Volume 1 and 2 and I'm looking forward to getting through the entire course.
-Ikasu
Will FSI Russian be uploaded? I heard FSI Russian is very good. On a related note, will FSI Spanish Volume 3 and 4 be uploaded? I've gone through Volume 1 and 2 and I'm looking forward to getting through the entire course.

-Ikasu