Mario Wonder will be huge this Christmas. NSMBWii was like their biggest hit at the time and now that we haven't had a proper 2D Mario game in a while, i'm sure it will give a big boost. Switch will get to 140 millions by the end of the year and will probably sell at least 10-12 millions next year even if there is a successor. Nintendo probably won't mention it until April/May and even if leaks or info will circulate online, most people buying Switch right now are not gonna be aware of that.
That puts it at 150-152 by the launch of the successor if it does launch sept-nov 2024. It will need to sell 5-7 millions lifetime too surpass the PS2. I do think it will happen unless they drop the ball. But if they want to reach it, they can.