The article in the link below does not explicitly announce next generation of GeForce. However, there are hints that it is coming. https://www.nvidia.com/en-us/geforce/news/geforce-gaming-celebration-gamescom-2018/
As much as I'm dying for some new info as the next guy, where does it really hint at that? Nowhere, sadly...
OP is probably referring to the "spectacular surprises" part. Here's my take on one of the "spectacular surprises" that Nvidia will announce there: No new GeForce cards this year.
nah, it'll be gaming cards. nvidia has to ship some gpu's or the start of the next financial quarter will dip.