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
At the hardware level yes, software, yes as long as you don’t mind repaying for something you bought previously (potentially) and also don’t mind it being unavailable a few years later.
Source: had Wii U and switch.
You and the 3 other wii u owners had a rough time... that generation and move to switch was super weird.
The WiiU could run the entire Wii OS, so that's pretty good for backwards compatibility