As noted earlier, Banjo-Kazooie is coming to Switch as part of the NSO Expansion. Many have been concerned about how the game would look given the problems the N64 emulation has had on the switch, but the fears do not appear to be an issue here.
GameXplain has released a comparison video looking at the game on N64, on Switch and on the Xbox. As seen in the video, the game looks much closer to the Xbox version than to the original N64 version, showing some improvements have been made.
See the video below.
Banjo-Kazooie releases on January 20 on Switch.