Pemalite on 06 February 2020
If the Switch 2 has Tensor cores, then yes it can have DLSS.
If it doesn't, then no. No it can not have DLSS.
Basically the technology already exists today for a hypothetical Switch 2 to have DLSS... If it used Tegra Xavier or Tegra Orin.
--::{PC Gaming Master Race}::--