Surely they do it but not before 2020. Take it out now or in 2019 it feels very early and the people who bought your console last year or this one do not take it very well.
On the other hand and I suppose it all depends on the point of view and experience of each person, but for someone like me who has become accustomed to using the 3ds, playing on the Switch is fascinating.
Switch Friend Code = 5965 - 4586 - 6484
PSN: alejollorente10