It is kind of amazing that no studio has made a true, open-world, first person fantasy RPG to fill the Skyrim void. It feels like a $1,000 bill just waiting to be picked up up off the ground.
The problem since then is that CDPR decided to establish another IP, in a science fiction setting (Cyberpunk 2013/2020) acquired while working on The Witcher 3, while undoubtedly expecting that Bethesda would immediately initiate work on the next Elder Scrolls game. If both companies had taken another four years to complete their games, this would have seen Cyberpunk 2077 arrive in May 2019, followed by TES VI: Hammerfell in November 2019. Instead, Bethesda somehow spent 8 years creating an Open World space RPG, that isn't Open World, fails to make use of space other than spaceship combat, and isn't much of an RPG. Meanwhile, CDPR took a year-and-a-half longer than expected to release Cyberpunk 2077, and only managed even that by releasing it in a buggy state lacking many intended features and probably much other content.
A disaster for both companies.
