That projections of 13 million Switch units in the FY indicates to me that they indeed have yet at least one big release for this year; something that can do 10 million with their arms tied (and sadly, that's not Prime 4, even in the best circumstances); Legends Z-A sure will do it, but at that point, they already missed the holiday rush to push hardware too.
And technically, from those I mentioned, they'd have just 2 brand new releases announced in the Direct there, while they fill the rest with a remake, ports and a previously announced game.