Meta Knight still has his Galacta Knight alt color, so I don't think he'll be an echo.
...if anything, that's an indication that he's way more likely. See: Daisy previously being relegated to a Peach skin and the same for Dark Samus! In fact, would this make Galacta Knight the only "unique" alternate skin not yet transformed into an echo?
I guess there's also Dark Link, but jeez, we already have three Links in this game and certainly don't need four >_>
Yeah, but Peach lost her Daisy color, Ike lost his Chrom color and Samus lost her Dark Samus color. Meta Knight still has his, so going by the others it would seem like Galacta Knight won't be an echo.
Ahhh, okay, I didn't know this. That's a shame then. ---