I asked something similar, but it seems we just have to wait and see. They could've bumped production, but watching these next couple of weeks should give an indicator
Nintendo apologized for Switch shortages in Japan, saying it will ship more units in July and August for the Splatoon 2 launch. Nintendo also said its ramping up Switch production for later this year.
http://kotaku.com/nintendo-apologized-for-switch-shortages-in-japan-sayi-1796341836