I hope not, they already did that on the 3DS.
Another would be ludicrous. That said 1) Does Falco even say that line in SF64 and 2) I am taking everything with a grain of salt until the Nintendo Direct.
The artwork for Falco looks like it was taken from the 3DS remake. But if Miyamoto is planning an episodic release, I don't think Star Fox 64 would be a model to follow unless you added more planets.
Could just be asset placeholders.