https://twitter.com/ArcadeGirl64/status/798886351911403520
Emily Rogers has been on-point with Nintendo rumors in the past and this latest one is her stating the first 12 months of the Switch’s titles.
They include the following games:

• 3D Mario (Launch Game)
• Zelda Breath of Wild (Delayed; Releasing in First 12 Months)
• Mario Kart (Releasing soon after Switch Launch)
• Splatoon (Launch Game)
• Pokemon
• New IP
• Retro Studios Game
• Pikmin 4 (Been in Production Since Fall 2014)

While this is clearly a rumor with no official confirmation it is nice to hear that Nintendo is ready for the Switch’s first major year on the market.
Source: Twitter Post by Emily Rogers