GANs are really the biggest innovation that happened to ML in recent years and we're just scratching the surface of what is possible.
But I do have one concern: since images are very powerful, generated images could be used in a manipulative way. If you think about it, it is already possible to manipulate and fake images via Photoshop and the like, but also there GANs could open totally new possibilities.
RE: Photorealistic Image Generation Using GAN Neural Network