It would be nice if there were something to tide us over, like the Beginner Template for basic strength. I'm fairly flexible (can easily touch my toes, palm the floor, decent pike, almost front split and close-ish side splits), but I haven't improved in the last 10 years. Clearly what I'm doing is great for maintaining my flexibility but not for taking the next step.
It doesn't help that the Internet has 10,000 different, often contradictory suggestions on how to build a stretching routine. I don't know what to do, or what information to trust. I've even spent money on Internet snake oil. One reason I can't wait for S1 is because then I can trust the programming and stop wasting money on other products.
