Nintendo has been more hesitant than other developers to dabble in virtual reality, as executives like Shigeru Miyamoto and Reggie Fils-Aime have suggested it doesn't really fit Nintendo's style. However, that didn't stop Nintendo from filing patents for VR tech, and two years ago then-President Tatsumi Kimishima said Nintendo wanted to bring VR to Switch. If recent rumors are true, they're finally taking that leap soon.
Earlier today, Emily Rogers posted an article at Nintendo World Report stating that multiple sources are expecting a Nintendo Switch VR announcement sometime this year. The report claims that "a small, select number of traditional first-party software titles" will receive VR support in the near future, but it's not clear which games will be chosen. Soon after, GoNintendo reported separately (with their own source) that virtual reality support was specifically coming to Nintendo Labo.
This all follows the fact that (per Anime News Network) Nintendo recently entered a joint enterprise named "VRM Consortium." This is a group of 13 Japanese companies aiming "to develop the international virtual reality business with a focus on 3D avatars." Additionally, dataminers discovered a VR mode hidden in Switch last Summer. Finally, there's the fact that Nintendo General Manager Shinya Takahashi told the BBC last year that Nintendo was preparing to announce new hardware.
It's not clear exactly what sort of virtual reality experience Nintendo is aiming for, but it sounds like they're gearing up for a big reveal. We'll be keeping our eyes peeled for an official announcement, perhaps around E3.