From VG247: “Cyberpunk 2077 has been one of the hottest reveals of the year, stealing all the thunder at E3 in June when it was first shown to the press and industry behind closed doors, before developer CD Projekt Red decided to unleash that same demo to the masses weeks later.”
Source: N4G PC "That goat can really program!": How CD Projekt and Mike Pondsmith came together for Cyberpunk 2077