hits Hulu April 14.The famous family spoke about their news series with , and shared who will and won't be on air when the show starts streaming.According to the outlet, Caitlyn Jenner will not appear in the Hulu series and Rob Kardashian won't being a main cast member either, though he may appear in a cameo.While Rob was on often in its early days and even starred in his own 2016 spinoff,, which chronicled his relationship with Blac Chyna, he's largely stayed out of the limelight in recent years, instead opting to focus on his mental and physical health and his daughter, Dream.Kourtney Kardashian's future on the series isn't as certain either, with the newly engaged mother of three telling that became «really toxic place for me.» While she attributes burn out to wanting to step away from the show, Kourtney maintained that she's not the reason the long-running series came to an end after its 20th season.«I think that we were all ready to move on to something else,» Kourtney said.The Hulu series, described as having «more documentary style» footage, will likely be Kourtney's last foray into the reality world.«I see myself living in another city,» she said. «I don’t think I see myself filming on a show in five years.