Often times trailers that early are used as a hiring tool, too. Cyberpunk’s original CG trailer was back in like 2012, and that game came out in 2020, but we know from an interview at E3 before The Witcher 3 came out that there was a very small team working on Cyberpunk before Witcher 3 was done, and Cyberpunk at that point was mostly just design documents.