Will the NS be able to play 3ds cartridges?

[theARTIST0017]

I agree with the others, it's not needed. Though you make an interesting argument about lengthening the lifespan of the 3DS. They don't need to implement BC to do this, they just need to keep chugging out software for it...which Nintendo probably won't do now that I think about it. They should focus more on Virtual Console and reviving it for Switch.