I watched the Merc trilogy again and feelings for old AUs came back. Specifically ones about Locus and Felix being fucking terrible dads to some homeless kids (three guesses as to who they are, or just check the captions).
And since Siris is now a thing, that just opens up more possibilities. So maybe consider this an AU where Chorus never happens and the assholes just go on being bounty hunters for the rest of their lives while raising the kids.
Also I guess you could consider this a redraw of this old thing with a lot more added.