I will indeed be going with a gender swapped 
[img]http://img2.wikia.nocookie.net/__cb20130511223346/marveldatabase/images/thumb/2/2f/Green_Goblin_(1995).png/250px-Green_Goblin_(1995).png[/img]

Current thinking is she'll be in her late teens. Will be borrowing from Norman & Harry's origins.