Take this news with a grain of salt but the usual rumor mills are starting to spin their gears about NVIDIA's GM200, the next big GPU from NVIDIA; The GM200 is believed to have a die area of 551mm², with 20 to 22 SMMs, 2560 to 2816 CUDA cores, and a 384-bit memory bus. If the rumor is right, the card may be about 50 percent fater than a GeForce GTX Titan Black Edition. Availability will reportedly follow before the end of the year.
Moving on, we could expect it to be the GTX 980 Ti, but if it's offering a huge performance increase over the GTX Titan Black Edition, we might see something like the GTX 985 Ti, or GTX Titan X, something I like the sound of better. Then we have the shift to 20nm, which is expected next year, so if the new GM200 is built on the current 28nm node, the shift to 20nm is going to be an entire new world for NVIDIA. The company has positioned themselves incredibly well after the mess that was Fermi, so much so, that AMD really has no firepower right now - so it'll be interesting to see if NVIDIA holds back, waiting for AMD to release something, to quickly smack it down to reality with its new GM200-based card.