User blog comment:Steven+Amethyst=SmokyQuartz/Luffy and Hancock have a daughter/@comment-24850639-20170203010719/@comment-24850639-20170203214551

Yeah I'm not saying it's out of the question or anything, I just don't know enough about it yet to feel comfortable enough to make theories. Conqueror's Haki that is. When Luffy used it at Marineford, Garp commented the he "inherited" it. Now that we know "lineage factors" are even a thing now, I'm more than positive that Luffy's kids are destined to have it.

But beyond that and having "special" haki...does having two parents that had it truly enhance your own? Rayleigh stated that you can't really strengthen that kind of haki through training, you can only improve it by working on yourself as a person in general. That's what kinda throws me off. It seems like Conqueror's Haki is more closely tied with your own spirit and personal development, things that are for the most part intangible. I don't think it would have another "level" per se that would allow you to forego that requirement, just from having 2 parents with the ability. We'll see as we start to learn more about the mechanics of conqueror's haki though