Wow, that is a heck of a teaser!
Having read the whole thing, I'd actually say that would've made a pretty good episode. Sure it was fairly predictable where they were going with it, but interesting all the same. Chakotay was almost life like in this "episode." Janeway kills a member of her crew, has no qualms about her lackeys killing a few more and just accepts Seven's "my bad" apology when she accidentally assimilates someone. I'd call this insane behavior, but... typical Voyager material!