MP4 is on the clock. The only thing we have to operate on is that the absolute latest we’ll see it is the first or second week of December 2024. But realistically we’ll see it earlier than that. So we should see it in just over a year. Meanwhile…
Silksong could probably beat it. It won’t have an overly long cycle between announcement and release, presumably.
Is Half-Life 3 anything more than a myth?
Both F-Zero and Starfox are possible, but I don’t think particularly likely. My guess is that Nintendo/Miyamoto would treat a new SF similar to the manner in which Pikmin 4 was treated, so the clock is ticking there. An F-Zero GX port feels about as likely as a new game is, but my guess is Nintendo is happy to keep focus on 99.
Miyamoto retiring could be a thing before then too, but who knows.