During the Pokemon Press Conference today, an announcement was made teasing an enhanced port of the Pokemon game Detective Pikachu.
https://twitter.com/Pokemon/status/1133539944691933184
Detective Pikachu will arrive on the Nintendo Switch some time in the future. Right now, we have sparse details, but it is hinted that it will be a port with enhanced features. Detective Pikachu for the Nintendo Switch will have a new ending, which was teased by an executive during the press conference.
Right now, the release date is uncertain and was not announced. Stay tuned for more Pokemon news!