New firmware incoming?

Nintendo updates their online maintenance schedule all the time for various fixes and services, but today we have something that I can't ever recall seeing. The maintenance page says that the Switch will experience a disruption due to "distribution of update data" on Jan. 6th, 2020 at 9:30 PM PT. Many are speculating that the Switch will get a firmware update during that time, but there's no official word from Nintendo at this time.