Yeah, I've considered the fact that the mainstream kind of doesn't exist anymore. But still as a teen, I would never have thought I'd see a Disney movie with a buff woman as a main character. Or that Street Fighter would have a playable big muscle woman. I especially wouldn't have expected them to be allowed to have feminine faces and not be mannish stereotypes, setups for jokes.
Muscle women in media were hard to come by when I was a kid (90s-00s). If one appeared, it was usually a one off character. Though I wish there were more (obv), they're a little more common now.
Judging from your stories, I think my taste in women is a little less extreme than yours. While I like boobs and pecs equally and I can take or leave hourglass shapes, I like when women maintain their feminine faces. Even still, I'm not going to share my fetish irl anytime soon. If I said I like women with abs, they'd be cool with that. But if I said I like women with huge biceps, they might be concerned. If I said I wish women could grow bigger than the biggest male bodybuilder and handle men like ragdolls on the bedroom, I have no idea how they'd react. And, as much as I'd like to be a more open person, it's none of their business, frankly.
I know that our fetish will never be completely catered to. I don't expect to see a series of erotic live action film featuring muscle women, enhanced with CGI or realistic muscle suits, enacting every fantasy within this forum. But I could see a high concept movie about a woman who accidentally gains an inhuman amount of muscle and the way that affects her life and relationships. And we could get some eroticism when it taps into how her sex life has changed.
I could also see a more trashy movie, maybe horror, that plays into the more extreme parts of this fetish.
I am very biased but I think our fetish has some untapped potential. Different people look at a muscle woman and see different things. They might see her as hot or ugly or intimidating or disgusting or cool or weird or comical and absurd or inspiring and empowering or perverted or some combination of these. A movie, video game, or cartoon could focus on one or more of these reactions and come up with something interesting.
What would you like to see? What do you think is likely?