If they keep doing the Switch concept. It will be an Nvidia chip again but not Tegra. Ampere. Base PS4 power level. 1-2.5Tflops. DLSS so games can run at 540P in 1080P and maybe the system docked can go up to 1440P with DLSS. Limited ray tracing as Nintendo loves lighting and will use RT for a Zelda Dungeon or something. They won't go 3D as 3DS was an answer to 3DTVs of a decade ago that no one cares about. Even 3DS dropped 3D in later models. Not even going to speculate beyond that as it's pointless.