Season 13 of When Calls the Heart has officially begun - so when will fans see Lori Loughlin return as Abigail Stanton? Erin Krakow, who plays Elizabeth Thornton on the Hallmark series, exclusively told Us Weekly ahead of the Sunday, January 4, season 13 premiere that viewers won't see Loughlin's comeback this year. "Lori Loughlin is returning in season 14," Krakow, 41, confirmed, noting she is "so excited" and "over-the-moon happy" about Loughlin's homecoming. The actress confessed, "I can't tell you anything about it because I don't know anything about it. We haven't written the season yet.