Khloe Kardashian and Kim Kardashian Khloe Kardashian and Kim Kardashian

It will be the best of times and the worst of times on the upcoming new season of Keeping Up with the Kardashians.

In the Season 9 trailer, which debuted Sunday after the family's Christmas special, Kim Kardashian is seen showing off her beau Kanye West's fancy new recording studio and getting engaged. However, not everyone in the famous family is all smiles, as Khloe Kardashian is seen struggling with the whirlwind media coverage surrounding her marriage to Lamar Odom. (In the last several months, there have been reports about Odom's drug use and infidelity, in addition to a DUI arrest in August.)

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"I have to move on with my life and that means changing a lot," Khloe says, right before Odom is heard asking sister Kourtney Kardashian if he can be accepted back into the family.

And then there's the shocking news of Kris and Bruce Jenner's split after 22 years of marriage. Watch the trailer to see how Kris and Bruce told their daughters and just how Kim's family reacted to West's proposal: