Reddit gives credit to this youtuber, that in the past has leaked some Nintendo things including Metroid Dread
https://twitter.com/NWeedle/status/1266833951898906632?s=20
Translation
"Leak Express: New Metroid 2D for Switch could be "Metroid Dread"
It would be the sequel to Fusion.
This game...
Ah. Oh well…
The longer the better, as far as I’m concerned - the Switch is my favorite console of all time, and I’m afraid they’re going to change what made it great.