Credit: Kelsey McNeal/ABC Television Group © 2012 Disney Photo: Callie Smiles on Grey's Anatomy Season 8, Episode 11

The Grey's Anatomy Season 8 alternate universe episode is our most-anticipated episode of the winter. We can't wait to find out exactly how the Grey's world would change if Meredith's (Ellen Pompeo) mom, Ellis Grey, didn't have Alzheimer's.

Would the same relationships happen? A tantalizing new spoiler hints that two of our favourite couples, Owen (Kevin McKidd)/Cristina (Sandra Oh) and Callie (Sara Ramirez)/Arizona (Jessica Capshaw), may not be together in bizzaro Seattle Grace-Mercy West.

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TV Guide's William Keck recently tweeted this hint: "Just learned in #greysanatomy alternate universe episode Callie ends up with Owen!! Watch for my full interview w/ Kate Burton (Ellis Grey)."

What? If Callie ends up with Owen, that means Owen/Cristina and Owen/Teddy (Kim Raver) don't work out, and we don't even want to think about why Calzona isn't together.

Callie and Owen are very compatible in one way: they both want kids. If this spoiler is true, maybe we'll see a Torres-Hunt child. Wouldn't that be weird?

Of course, we should keep in mind that the phrase "ends up with" could be misleading. Maybe they end up in surgery together, or being work husband and wife, but not really dating.

What do you think this spoiler means? Weigh in on our Facebook page.

Remember to tune in to the next episode on Thursday, January 12, at 9 pm ET/PT on ABC.

Source: Twitter