Source: https://x.com/NintendoCoLtd/status/1853972163033968794
This is Furukawa. At today’s Corporate Management Policy Briefing, we announced that Nintendo Switch software will also be playable on the successor to Nintendo Switch. Nintendo Switch Online will be available on the successor to Nintendo Switch as well. Further information about the successor to Nintendo Switch, including its compatibility with Nintendo Switch, will be announced at a later date.
Also, what a day to be casually posting this haha
It took about a year for it to get near-full compatibility with old games since it was emulated on the 360.