Im sure there are more details in this video for someone more discerning, too. My point is that I didn't find there to be much information in the trailer because it's clearly mostly a refresh. And I'm not complaining about that. Nor am I complaining about the nature of teasers.
This is obviously more of a teaser than an actual full trailer.
They announced a Nintendo Direct on Feb 2, so I’m sure full/most details will be covered then.