With the Switch entering the holiday season soon, is it possible that it can hold off being overtaken by the DS until after, when the DS comes into his holiday season? Which would also mean that the PS4 might get overtaken first btw.
Based on Nintendo's FY Goals and how they plan to move most of those 20m consoles after October, yea I think so.
Though, the DS has much higher quarterly sales after that holiday season, so it will probably pass the Nintendo Switch right after that. :P
But, who knows, maybe Nintendo will do better with momentum throughout FY Q1 and FY Q2 in 2019 rather than being so heavily skewed to FY Q3. (well, less skewed anyways...)
Depending on how 2019 goes, Switch might still be neck and neck with DS post next holidays as well.