wouldn't be a 4 year avg for the next 3 years if they just stopped doing the current methodology and then began accumulating a 4 year total starting with this individual season. I could be wrong, but I personally don't think that interpretation could be correct. The NCAA does some dumb things though, so who knows.
http://www.ncaa.org/aboutresources/research/academic-progress-rate-explained
"Currently, teams must earn a 930 four-year average APR or a 940 average over the most recent two years to participate in NCAA championships. In 2015-16 and beyond, teams must earn a four-year APR of 930 to compete in championships."