Here's some scoop on Grey's Anatomy from Entertainment Weekly's Natalie Abrams' The Spoiler Room column, which was posted on 11/20/15.
Will we see more scenes between Mer and Riggs on Grey’s Anatomy? — Amanda
In light of Meredith’s discovery about Owen’s sister, any scenes between them will be fraught with even more tension. “There’s definitely some stuff where Meredith and Riggs butt heads,” Martin Henderson tells me. “He starts pushing back and starts getting quite frustrated with her and tempers start to flair. That starts to then threaten their ability to do their job and actually take care of their patients because of all the infighting. It becomes a sticky situation all around.”
Link to the full article:Spoiler Room: Once Upon a Time, Blacklist, Grey's Anatomy, more spoilers | EW.com