Scheme wasn't shelved because it was a "fringe" language. In fact, Prof. Hilfinger the one who brought it to Berkeley in 1980, and that class 61A is the first course all CS majors take. Brian Harvey taught the class for ever, and published his own textbook "Simply Scheme."
MIT is doing something similar, with the support of the authors.
The same material is being taught, just in a different language.
Structure and Interpretation of Computer Programs has been taught at UC Berkeley for 30 years using Scheme.
This semester Prof. Hilfinger is teaching it in Python 3. It isn't a formal online course, but it looks like everything is available including lectures, slides, book & homework.
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