Credit: ABC

We still have a month until Grey's Anatomy Season 10 returns to the small screen, and we hate the wait. Fortunately, we at least have spoilers to help us through the long, Grey's-less month ahead.

Meredith (Ellen Pompeo) and Derek (Patrick Dempsey) have been doing pretty well in Season 10, but that just puts us on edge heading into the second half of the season. After all, no Grey Sloan Memorial couple sails smoothly for long.

Is there MerDer drama headed our way? We've rounded up the juiciest spoilers about the couple right here, and will keep you updated as more roll in.

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So, about that phone call. In the Season 10 midseason finale, Derek received a call from none other than the President of the United States asking him to join the presidential brain mapping project. Derek is supposed to be taking a step back from work so he can focus on daddy duty, but it's pretty hard to say no to the prez, right?

While it sounds like we won't get to see the president on screen, that phone call will have a big impact on the plot. In fact, according to Sarah Drew, "Everything kind of gets turned upside down emotionally because of the president’s phone call to Derek. All kinds of things get messed up because of that phone call.”

Our guess is that Derek says "yes" to working on the project, which could mean big changes for lots of people in the hospital. Would he abandon his work with Callie? Would this impact Mer's ability to do her own research? There are lots of places this story could go.

At least Meredith and Cristina have made up, right? Mer could be facing some bumps in the road if Derek devotes lots of time to the presidential project, but at least she might have her bestie back. According to Shonda Rhimes, Meredith and Cristina's intense conversation during the prep for April's wedding was them making up. Does that mean their friendship will be back to normal? Only time will tell.

A new set? There are going to be new sets this season, and one will be a "major plot point" for a longtime couple. Meredith and Derek is the longest lasting of all Grey's couples, so it's definitely possible this spoiler is about them. Maybe the set is related to Derek's project?

MerDer for years to come! Whatever happens with the presidential project, at least we can rest assured that Meredith and Derek aren't going anywhere: Ellen Pompeo and Patrick Dempsey have renewed their contracts for another two years!

What do you want to see from Meredith and Derek when the show returns? Let us know in the comments below!

Grey's Anatomy returns on Thursday, February 27 at 9 p.m. ET/PT on ABC.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!