We can now put together the picture for the S&P 500's future quarterly dividends per share through the end of 2020!

(Click on image to enlarge)

The "past" quarterly dividend futures is the last value we recorded for the CME Group's quarterly dividends per share futures before their related contracts expired on the third Friday of the month ending the indicated quarters. The "projected" quarterly dividend futures are what the CME Group's site reports for the S&P 500 as of the close of trading on 10 September 2019.

If you click through to the CME Group's site however, you'll find that they haven't yet started covering 2020-Q4. We had to infer that value by pulling the CME Group's annual dividend futures for the S&P 500, then subtracting the available quarterly futures for 2020-Q1, 2020-Q2, and 2020-Q3 from it. What remains is a reasonable initial estimate for 2020-Q4's expected dividends per share for the index!