Ray Traced Shadows within World of Warcraft Shadowlands have been allowed on the match's Beta/PTR, and also the first comparison shots have surfaced online.
Back in April of this year, Blizzard added Ray Traced Shadow alternatives to the match's Alpha. Unfortunately, actual Ray Traced Shadows were not allowed just yet and those from the Alpha were only able to view the new options. According to the option's description, it"improves shadow quality with ray tracing, which produces shadows with more natural softness, greatly improved precision, and out of other light sources"