Foundation is indeed the very best basic GST course available anywhere in the world. However notice the word basic. There is much more information that needs to be covered; however before we can begin "calculus", it is helpful for you to have first learned your "multiplication tables."
I'll give you a little preview of what is forthcoming. This will hopefully serve as a wake up call for those of you who have been taking a very casual approach to their Foundation training.
The GB University curriculum;
Note: ALL of the following courses have already been photographed and filmed except for R4. Now all of you need to work harder and master Foundation so that I feel comfortable releasing the new courses. Note that I said 'master', not sloppily rush through.
And NO, I am not going to share course specifics; except with GB Seminar attendees (as has been the case for the last 18 months or so).
Also be aware that I am a LONG time US Jr National Team Coach with very high standards and the following course prerequisites and corequisites will be strictly enforced. For example, if you purchase R2 and have not yet completed the necessary prerequisites (F3, H1, H2, R1) and come onto the private R2 forum requesting assistance because the course is too hard for you and you just can't seem to make any progress; most of the advice you receive will consist of "quit being a dumbass and go back and fix your deficiencies." 
Fundamentals; prerequisites = none
Stretch Series; prerequisites = none
Foundation 1; prerequisites = none
corequisite = H1, H2, Stretch Courses
Foundation 2; prerequisite = F1
corequisites = H1, H2, Stretch Courses
Foundation 3; prerequisites = F1, F2
corequisites = H1, H2, Stretch Courses
Foundation 4; prerequisites = F1, F2, F3, H1
corequisites = H2, Stretch Courses
Handstand 1; prerequisites = none
corequisite = F1, H2, Stretch Courses
Handstand 2; prerequisites = none
corequisites = H1, F1, F2, Stretch Courses
Handstand 3; prerequisite to begin H3/SEs = F1, F2, H2/SE7, working H1/SE10
corequisites to begin H3/PEs = H1/PEs, H2/PEs, F2, F3, F4, Stretch Courses
Rings 1; prerequisites = F1, F2
corequisites = H1, H2, F3, F4
*NOTE: If you are chomping at the bit and simply cannot wait to begin ring strength, you may begin R1 after mastering F2. This will not be ideal, but as long as your R1 work is only attempted after your daily Foundation work is completed it will be moderately successful. Be aware however that your ring strength progress will proceed much faster and with far fewer roadblocks if you take the time to master F4 before beginning R1.
Rings 2; prerequisites = F1, F2, F3, H1, H2, R1
Rings 3; prerequisites = F1, F2, F3, F4, H1, H2, R1, R2
Rings 4; prerequisites = F1, F2, F3, F4, H1, H2, R1, R2, R3
Movement 1; prerequisites = none
corequisites = F1, F2, F3, H1, H2, Stretch Courses
Movement 2; prerequisites = F1, F2, M1
corequisites = F4, H1, H2, Stretch Courses
Movement 3; prerequisites = F1, F2, F3, M1, M2
corequisites = F4, H1, H2, Stretch Courses
Hungarian; prerequisites = F1, F2, F3, F4, H1, H2, M1, M2, M3, Stretch Courses
Unlike other conditioning 'programs', all of these courses are completely interconnected. It fact it may help to think of all of these courses as actually being one large single course (GST) that has been broken down into 15 bite size pieces.
For those who are unrelenting and focused on all the components of their foundation and handstand work (especially the integrated mobility), it is indeed about to get "really real".
For everyone else, from those who prefer to "dabble", to those refuse to follow the programming, to those who continue to insist that 'the world is flat' (meaning that they remain attached to their own unapproven opinions); it will remain merely business as usual. That is to say; a little work, a little enterTRAINment and very little actual progress.
GST is ALWAYS a fair proposition; you get out of it what you put into it according to the principles of GST. This is not my rule, but nature's - and nature accepts no excuses.
Yours in Fitness,
Coach Sommer