Fall 2017, as in the semester? Capitalized. Because semesters like Fall18, or Spring 2005 are like proper names. Otherwise, I think @LSAT_Wrecker is correct. Seasons, in and of themselves, are not proper nouns, so aren't capitalized.
@LSAT_Wrecker Absolutely agree with you. I believe in the importance of fundamentals and agree that without a proper foundation, timing is simply fluff (lacking substance).
Your inference is correct and I appreciate your vote of confidence.