It doesn't. I'm sorry if I didn't explain that article very well. The article describes a new initiative that PBS is taking to increase viewership by introducing new age-appropriate blocks, live hosts, and a larger amount of programming. They are debuting their initiative this Fall, so Sesame is holding off S37's debut until the new unveiling.
As for the "oldies" that they will be showing, I don't think there have been any decisions made as to which inserts they will be airing yet.