Look, since we all know its happening at some point, I'm just going to make predictions for the next Direct now, using the official Direct format.
Spotlights
* FIre Emblem Switch fully revealed, Pirate themed. Touch screen controls, as well as Joy-Con pointer and button controls. Coming May 25, with new Joy-Con colors and special bundle
* Brand New Sakurai Project, coming Summer 2018
* New IP from EPD in-house, coming Auttumn
* New Retro Studios Project, coming Fall
Headlines
3DS:
* Sushi Striker: Way of the Sushido details, Coming March 23
* Dillon's Rolling Western final game, available today
* Release date for Aliance Alive
* One unannounced third party game
* The Legend of Zelda: Link's Re-Awakening, re-imagining of the Game Boy classic, coming August 3
* Wario Land: Gold Rush, new Wario Land game, coming Summer
* Kirby Battle Roayle Update available today, adds new features
Switch:
* Fire Emblem Warriors DLC, details and release
* Yoshi's Flipside Story, coming June 8
* New NDCube IP, party game, coming Summer
* Valkyria Chronicles 4
* GTA V and Red Dead Redemption, coming Spring and Summer respectively
* Wolfenstein II release date
* Bayonetta reminder
* New Bandai Namco games, coming Summer and Fall
* Mario Tennis Aces Update, coming April 6, new amiibo shown
* New IP from 1-2 Switch team, Rhythm game, coming Fall
* The World Ends With You -Final Remix- more details, coming June 15. The World Ends With You Too, Now in Development for Nintendo Switch
* Project Octopath Traveler, Now named Octopath: The Journey is Yours. Coming Summer
* New Mario & Luigi game, Peach is the focus, coming July 13
* WarioWare: FreeStyle, first new entry since D.I.Y., use the Joy-Con is weird ways, coming Summer
* Fallout 4, exclusive features, all content, coming Summer
* Nintendo eShop reel, including Dragon Marked for Death, Light Fingers, Inner Space
* Aksyss Games, including BlazBlue, Garu Metal, and one other title
* Xenoblade Chronicles 2 DLC
* New IP from Rhythm Heaven Character Designer, Episodic game. First chapter coming June 22
* Splatoon 2 updates, another Testfire announced
* The Wonderful 101, new content, coming August
* Hyrule Warriors Definitive edition, coming April 13
* Nintendo Switch Third Party reel
No online news or anything until at least March. I think we're not going to see it until late Spring. But yeah, this is what I think is plausible.