I would love to have such an option for my children.
Look up some of the excellent resources on radical acceleration into college listed in the Davidson resource library. There is a fair amount of research on early college entry, with the majority of those who have taken that path finding it to have been a positive experience.
I didn't skip high school altogether (grade-skips distributed somewhat evenly throughout my K-12 experience), but did end up as a full-time college student at around that age, and have no regrets. Asynchrony will strike somewhere, regardless, whether it is socially, emotionally, in EF, or intellectually. Which aspect of asynchrony is more tolerable for your child will be something you and she have to feel out on an individual and ongoing basis.
And remember that not only does one miss some of the "fun" of high school, one also is able to miss some of the drama of high school.
