An old rumor has been revived. Nintendo could be working on a new Switch model to be commercialized in 2021. The Big N would prefer to skip the launch of PS5 and Series X and have the attention of the new model the next year.
Specifications are not close yet, but they would include more computing power and capability to show 4K graphics. The release of this system would be accompanied with a new lineup of games produced by Nintendo and third companies. These games would cover an ample audience with casual and hardcore experiences.
Nintendo is taking 2020 in a relax way regarding software launch, so, the rumor fits.