Here's a list I made when the Switch first launched. There are the features I want;
-eShop/Virtual Console
-Optional bigger Joycons
-App Shop
-Miiverse
-Miitomo integration
-Playlog (which we actually have now)
-Media player (movies, music, comics)
-News channel (like Wii)
-Sleeker looking dock
-Themes
-Download Nintendo Video (up to 2gb)