This is very cool but almost happening a little too late. Ideally we want the entire Trails series available on the Switch but the Switch 2 is right on the doorstep. So what are the odds that remakes of all three of the Sky games actually get released on the Switch 1, let alone the two missing Cold Steel games?
Now all the Cold Steel games actually are on the Switch, just the first two aren't localized as they were originally published by XSeed and the series is now published by NIS. XSeed owns the rights to their English translation and aren't willing to license it to NIS and NIS doesn't want to invest in doing their own. So from a Japan-specific point of view it's only the Sky games that are missing. But even then the timing here is tight. Even if they make one remake per year, the third one would likely show up after the Switch 2 has been out for at least a year, maybe two.