NVIDIA has been rather tight-lipped when it comes to revealing details about its next-generation graphic cards. The current generation GeForce GTX 10 Series, which is based on Pascal architecture, is two years old at this point and ready for a replacement. 
Although rumors surrounding the official launch of the [alleged] GeForce GTX 11 Series have

Source: Hot Hardware – NVIDIA To Discuss Next Gen GeForce GTX 11 Series GPUs At Hot Chips 30 Symposium