Again, buddy, the resolution is that Kanako is an immortal zombie. That's it. That's how it is. The ramifications of this are just whatever happened with the rest of the amalgamates in UT.
That's not a resolution for an important named character. It can be a resolution for a minor character. But the minute its applied to an important character it stops being a resolution and becomes a cop out.
"What's that big space station Vader and Palpatine are looking at at the end?"
first of all, that was explained in Attack of The Clones. Second, its the main crux of the following movie's plot, and is adequately resolved in said movie.
Why did Obi-Wan just dump Luke on Tatooine?
That was explained IN ROTS. He's sent to live with his surviving family members and to be hidden from the emperor.
"How has Qui-Gon become immortal and why are we only hearing about this now?",
That's explained as far as it can be without delving into midichlorian talk in said movie and then used heavily in the following three movies.
By contrast Kanako is sent to the lab and is never seen or heard from again.
It happens with Bruce Wayne's parents, it happens with Uncle Ben, with George Joestar,
You know what the difference with all those characters is? They're dead, and they died at the start of the story. Batman isn't spending the entirety of Batman Begins trying to cure his parents' fatal poisoning.
she isn't even connected to that many characters other than by virtue of being connected to a character who actually *is* connected to other characters
She's connected to more characters than Ceroba is.