The succubus energy recreated the world as prescribed by the original spell, but was now free to continue its influence on womankind in its own way.
The former men slowly gain magical powers related to all things sex. Transformation, hypnosis, bindings, and so much more become available with practice, patience, and imagination.
The original women, on the other hand, find that their new bodies are made for sex. Flexibility, stretching, stamina, lubrication, and more are all amp up. Along with this, the original women start producing magical mana that is tied to their bodily fluids.
This mana fluid, if consumed by a shemale, will temporarily boost their magical abilities. As a shemale feeds from a female, their magic will reshape the body and mind of that female more to their liking. Women will feel this power as a great love as their assets are altered and their minds warp with new ideas and fetishes.
After about a year the world operates similarly along the lines of the old world, but on steroids. Women are now magically influenced to love the new shemale patriarchy made up of all the former males. Even more than that, women's bodies, looks, thoughts, and desires are molded by their shemale lovers.
The only change that is seen after the magically enhanced shemale patriarchy takes command of the world is the birth rates of the genders. Women will come to out populate shemales on a 1 to 4 factor. This makes marriage harems the norm of families as a shemale will usually have 2 to 5 wives.
As for the feminist wiccans, they got too caught by the new world created by the succubus energy, and each of them found a magically enhanced happy ending with a shemale in the new patriarchy, thus ending their pursuits any further. >tl;dr - Fem-nazi witches change men into women with succubus energy, but end up creating a magic shemale patriarchy that they fall in love with.