Nintendo has announced plans to hold a 30-minute Nintendo Direct tomorrow, March 8.
Streaming online at 2:00pm PT/5:00pm ET, the Nintendo Direct will focus on Nintendo 3DS and Nintendo Switch titles launching this year. Additionally, Nintendo promises new details on Nintendo Tennis Aces, which was announced during January's Nintendo Direct Mini. Nintendo Tennis Aces is expected to launch on the Nintendo Switch this spring and will feature a story mode, which the series hasn't seen since Mario Tennis Power Tour.
Some other titles coming to the Nintendo Switch that could be mentioned in tomorrow's Direct presentation include Kirby: Star Allies (March 16) and Donky Kong Country: Tropical Freeze (May4). Detective Pikachu is set for release on the Nintendo 3DS on March 23, so we should get some information on that as well.
Coming to the Switch later in 2018 is a new mainline Fire Emblem and Yoshi game. Nintendo hasn't talked much about these titles since announcing them last year, but that could change tomorrow.