When will 3DS' successor launch?

[Ninten78]

Being Nintendo is using the term...Switch is a home console first and foremost when do you think a successor to the 3DS will launch? Being it wont replace the 3DS according to Nintendo.

http://www.technobuffalo.com/2016/10/21/nintendo-says-switch-is-a-home-console-first-and-wont-replace-the-3ds-not-so-fast-nintendo/