Yes they can advance to the level of Sorcerer although it’s usually only the wicked witches who do so. This is due to the fact that good witches tend to not want to give up their Wicca beliefs, and their beloved Goddess power sources. Wicked witches on the other hand could care less, and will do anything to acquire more power in their quest to corrupt the planet, and destroy humanity. Thankfully Sorcerers are rare since it take an amazing level of mental power to be in the upper echelon of magic practitioners.
Related Blog Post: What’s The Difference Between Witches, Warlocks, Wizards & Sorcerers?