I don't expect things to change much. I think the real limiting factor is how hard people are willing to work, and I don't imagine that changes much year to year. The number of people each year with the capacity and the desire to grind hard enough to get through Zanki + 3 qbanks is probably very small. I tried really hard to spread the Anki gospel at my school and convince people to use it, helped them get set up and show them how Zanki works, etc. At the end of the day though, most people just aren't willing to put in the time to keep up with it.
And I can't blame them...
I've been conflicted about my Zanki + 3qb plan lately. Rationally, aiming for >260 is likely an inefficient use of time. The sweet spot for Step 1 in terms of benefit:effort ratio is probably the low 250's. If you look at Charting Outcomes, the >260 group actually matches at a lower percentage than does the 251-260 cohort in many specialties. If thinking about trying to match at a top residency program, your research and letters of rec are almost certainly much more important than having a 260 vs a 250. And in terms of effort necessary, the further out on the bell curve you go the harder it becomes and the faster your returns diminish - 84th percentile means you're in the top 16/100 people... 96th percentile means you're in the top 4/100, a group that is 1/4 the size!
I'll probably just keep grinding as planned though, I just can't help it...