They estimate it’ll take roughly 100 hours to complete a Pass

Unlike Fortnite, the Rocket Pass won’t feature specific gameplay challenges, though there will be a weekly win bonus as part of a general progression update.We are being careful about introducing 'challenges’ as we don't want to disrupt the competitive balance of Rocket League by encouraging users to hunt down specific stats like Saves or Assists," Psyonix says. With that in mind, the studio is still open to “safe ways” of offering specific goals in the future https://www.lolga.com.

On Reddit, Psyonix reps have been answering specific questions in even more detail. They estimate it’ll take roughly 100 hours to complete a Pass and plan for the first version to run for about three months. Despite Rocket League’s cross-play, you won’t be able to take Rocket Pass progress across platforms, though, it is said that “it's our hope to do this in the future, RocketID is the first step towards a Psyonix Identity you can link to https://www.lolga.com/rocket-league.”