From article:
According to multiple people with knowledge of Nintendo’s next-gen console plans, the company is likely to release new hardware during the second half of 2024, to ensure that it has ample stock available on day one and to avoid the kind of shortages seen with PlayStation 5 and Xbox Series X|S.
Although specific details on the console are being kept closely guarded, those VGC spoke to indicated that the next-gen console would be able to be used in portable mode, similar to the Nintendo Switch.
Two sources VGC spoke to suggested that the console could launch with an LCD screen, instead of the more premium OLED, in order to bring down costs, especially considering the increased storage needed for higher fidelity games. The current Switch comes with just 32GB of internal memory, while many current-gen PlayStation and Xbox games are over 100GB.
I think they’ve said that it will have backward compatibility, and will access the to switch library. (I hope this is true also!)