Switch is Wii U successor only.True 3DS successor is hinted at.Yay!
Nintendo president Tatsumi Kimishima says that he’s thinking about a successor to the popular Nintendo 3DS system. Kimishima believes there’s still a market for one despite the ever growing popularity of mobile devices. The Nintendo 3DS continues to do well for Nintendo so that’s something he and the development team are looking into.
mynintendonews.com/2017/02/02/nintendo-president-says-hes-contemplating-a-nintendo-3ds-successor/