For it to happen there would need to be a female equivalent to Sidney Crosby in terms of athletic ability and hockey IQ. If that were to ever happen, it may really change things in developmental leagues all over and open new doors.
My 1 year old daughter is going to be likely around 5'11-6'0, and I fully plan on pushing her hard in hockey. Physically she will be bigger than many boys her age. Her boy cousins are around the ages of 4-5 and are already into hockey extensively are participate in numerous hockey camps on top of Timbits, it'll be interesting to see how she progresses compared to them. I wanna get her on skates shortly after she walks lol. I can't get over how advanced my brothers boys are already. His youngest just turned 3 and he can already wrist the puck consistently into the net about 20 feet out on the ice, he has a rink in his backyard.
My point is, if you try and develop a girl early on, and give her the same opportunities boys get, I think a lot is possible if you start right away. Any child needs to be gifted as an athlete, but drive and work ethic are equally if not more important. To me I get more excited about watching kids play and develop in sports than I was to play sports when I was younger. Teaching youth the game and helping them improve is more fun than I can describe.