I'm really skeptical SA will ever have broad appeal. Which is fine. Not everything can or should.
I imagine there would be some politically correct editing
Yup. Lots of that I'm sure.
And TBH, I'm over it. I'd prefer to see details changed in a way that remains mostly true to the overall point of the story but makes TSA the TV series successful, than have a show canceled after 3 episodes that no one ever watches. I will look at it as a derivative work based on TSA books, and do my best to avoid whining about the changes.
Throwing in some stronger female characters from the start would do wonders for making it more appealing - or at least keep it from being totally written off. Besides, more women breaking up the sausage fest that is PoN will make it more visually appealing for many viewers as well, right?
Btw, I don't think we even know what the 'overall point' of the series is. Until TUC is finished, and probably not even then, will there be any consensus on that. Which makes it really tough to determine how important every detail is, and what kind of impact it'll have.