1.3 million advantage for switch and the AC momentum will be seen for few more months and maybe until the holidays since it is a really good holiday title.
It will be hard for the Switch so lose this advantage tbh. It performed not that great in the summer last year and tbh even with the shortage I dont see it dipping a lot under 200k. End of the year will be really important (and switch lite launch). But still even if it doesn't peak this year and just remains stable, it will be an incredible performance.
I think the Mario celebration will help and I don't see the switch not getting a price cut this year or alteast a reduction bundle with MK8 or something.
I think they will be pretty aggressive this year on Black Friday and for the holidays.