Just my estimations.
1) SDXC: After Mario Kart 8 Deluxe.
2) Capture 1920 * 1080 pictures/ 720p video: Around Mario Odessy, or mid 2018 at worst.
3) Online services (Lobby, voice chat, etc.): Around September.
By making these updates essential for the console to function, Nintendo eliminate any hack in 2017.
1) SDXC: After Mario Kart 8 Deluxe.
2) Capture 1920 * 1080 pictures/ 720p video: Around Mario Odessy, or mid 2018 at worst.
3) Online services (Lobby, voice chat, etc.): Around September.
By making these updates essential for the console to function, Nintendo eliminate any hack in 2017.