What you will probably get if this Direct happens :
-Pokken Tournament
-Metroid Samus Returns
-Xenoblade 2 Release Date/Trailer
-Fire Emblem Warriors
-Pokemon Ultra Sun/Ultra Moon
-Skyrim(job) Release Date
What you might poooooooooooooooooooossssssssssibbbbbbbly get if this Direct happens :
-System update
-Breath of the Wild Expansion 2 Trailer/Info(I can honestly see this being an entirely different direct)
-Kirby Switch Info
-Yoshi Switch Info
-Super Mario Odyssey(I don't think they really need to show this again)
-Pikmin 4(Kind of unlikely but still somewhat plausible)
What you definitely won't get :
-Virtual Console(Holding off for both the SNES Mini release, and the paid online update)
-Metroid Prime 4 info
-Pokemon Switch info
-"New Kirby 3DS game"(Probably discontinued, or a very late 3DS game that won't be announced till 2018 and released a few months later)
-Rocket League release date(Would probably have been shown at indie presentation, or will just be a quick video on Nintendo's youtube page)
-Animal Crossing Switch(Honestly...why even show this off now? Seems like it would belong in an early 2018 direct, even if the game releases in Summer 2018 Nintendo has shown a clear dedication to announcing games that are coming very soon.)
-Fire Emblem Switch
-Streaming Service Info(Maybe this isn't a safe bet on my part, but I don't think it will be covered here).