Maybe at GDC, and that is a big MAYBE, right now the 10 series are still selling so Nvidia is not in a particular hurry to launch a new generation, plus right now the prices of gpus are hugely bloated because of cryptocurrency mining. My suggestion is to wait for 3 to 6 months, maybe the new 20 series will be lunched by then, and crypto mining will have died down somewhat so that the prices will have come down. TL;DR Don't buy a new gpu in the next few mouth, they are overpriced right now.