Only one completed episode of Grey's Anatomy remains unaired, pending the resolution of the writers' strike, and TV Guide's Michael Ausiello has got some more scoop on that episode - as well as some potential Grey's Anatomy spoilers from it.

Follow the jump to see what he has to say about Episode 11 of Season 4, which will air early next year and possibly be the last Grey's for some time. There's nothing too big in these spoilers, but shield your eyes if you don't want hints ...

Question: You mentioned a while back that George's mom was returning to Grey's Anatomy. Did the strike push that back?

TV Guide: That's what I'm hearing. According to my Seattle Grace mole, Mama O'Malley's return â€" originally slated for November sweeps â€" was delayed until Episode 11, aka the show's final pre-strike episode. That probably explains why George O'Malley had little to do during the just-wrapped two-parter. Why'd they move her out of sweeps? Well, when it became clear that episode 11 might be the final hour of Grey's Anatomy we get in a long time, the script underwent "massive rewrites" to ramp up the drama and add several cliff-hangers â€" one of which involves George's old lady. "They're pretty big bombshells," says the source. "Basically, everyone's futures are left up in the air."

Well, not everyone's. By the end of the episode, there will be little doubt which direction the Mer/Derek/Rose triangle is headed in.

Question: Earlier this season, you teased that someone's getting divorced on Grey's Anatomy, and it's not who we'd expect. After reading your Miranda Bailey narration spoiler, it has me thinking that it's her.

TV Guide: I can neither confirm nor deny that Bailey will be getting a divorce this season on Grey's Anatomy.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.