https://ew.com/tv/2019/04/10/when-calls-the-heart-season-6-resumes-without-lori-loughlin/

Hallmark Channel has announced a return date for When Calls the Heart, which was yanked from its schedule when Loughlin was arrested last month in the college cheating scandal. EW reports that all of Loughlin's scenes were removed from upcoming episodes following her firing. When Calls the Heart returns on Sunday, May 5, and Monday, May 6 as part of a two-night event. It will return to its normal Sunday timeslot on May 12.

How When Calls the Heart wrote off Lori Loughlin's character (https://ew.com/tv/2019/05/05/how-when-calls-the-heart-handled-lori-loughlin-exit/)

The Hallmark Channel drama on Sunday aired its first episode since Loughlin was charged in the college cheating scandal and fired in early March. When Calls the Heart had to be delayed with some scenes requiring reshoots since Loughlin's character was edited out.

Is Abigail (Lori Loughlin) Returning to ‘When Calls the Heart’? Season 10 Finale Offers Fans Hope (https://www.cheatsheet.com/entertainment/abigail-lori-loughlin-returning-when-calls-the-heart-season-10-finale-offers-fans-hope.html/)

A scene in the 'When Calls the Heart' Season 10 finale suggests a fan-favorite character might be returning to the show. But will Hallmark Channel welcome Lori Loughlin back?