Several new sets were recently built for Grey's Anatomy that have the potential to become permanent and bring with it new storylines for season 10 of the medical drama.

One set will be a major plot point later in the season for a longtime couple on the show, TV Line reported Tuesday, Jan. 14, without naming the couple. Also, something happens in episode 15 that required actress Jessica Capshaw to have a stunt double. 

Could one of the new sets have to do with Derek's new job offer from the president? Perhaps a temporary DC residence or an office for him in Seattle so he can still be close to his family. 

If Callie and Arizona who are the couple in question, a new set could be a house for them to live in with Sofia. April and Jackson are another longtime couple. A new set could mean they are finally getting together and maybe moving in together. However, actor Jesse Williams hinted that Jackson may soon doubt his actions at the wedding. Maybe moving in together is not the best idea.

Alex and Jo have not been together long enough to be considered a "longtime" couple.

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Akeelah and the Bee alum Keke Palmer will guest star on Grey's as a pregnant teen who seeks help from the Grey Sloan Memorial doctors and appear in one episode set to air in late March, The Hollywood Reporter revealed Wednesday, Jan. 15.

Grey's Anatomy returns for the second half of season 10 on Thursday, Feb. 27 on ABC.