Nvidia CEO, Jensen Huang, said back in June that we won't see a new Geforce announcement anytime soon, but almost three months is "quite a long time" as Gamescom 2018 kicks off on August 21st in Cologne, Germany.
Nvidia already scheduled a panel about its next-generation GPU plans for Hot Chips 2018 conference, which starts only a day before the Gamescom 2018, so things should line up properly with both consumer, press, and developer-oriented announcements.
Videocardz.com says that the date is still not carved in stone and that the invite in question only mentions "hands-on presentation of the latest PC gaming titles", but we have a hunch that these could be running on a new graphics card or even graphics cards.
Details are still scarce but we will surely hear more as we draw closer to the Gamescom 2018 event and as partners get a bit more information as they will surely want to have something to show at the same show as well.