According to Variety, it was announced by showrunner Roberto Aguirre-Sacasa this weekend at SDCC that Doherty would be back for the season 4 premiere titled, \"In Memoriam.\"

He added that the episode will “reflect Perry’s enduring legacy and the indelible imprint his character” had on the show. The return of \"Riverdale\" is expected for the fall.

\"PHOTO:
Ron Galella Collection via Getty Images
PHOTO: Jason Priestley, Shannen Doherty and Luke Perry at the Pasadena Civic Center in Pasadena, Calif., Aug. 25, 1991.
>

Perry died in March at the age of 52, days after suffering a massive stroke. His last filmed scenes aired last year, but it was announced that his arc would be wrapped up in season 4.

View this post on Instagram

Yesterday morning I got a phone call that devastated me. I’m struggling with this loss and am having a hard time with my thoughts. But, my heart goes out to his family and friends who were blessed by his light in their (and mine) lives. Processing this is impossible right now.

A post shared by ShannenDoherty (@theshando) on Mar 5, 2019 at 8:45am PST

After Perry's death, Aguirre-Sacasa posted a touching tribute on Instagram, a picture which featured the cast with Perry smiling among his co-stars.

\"Luke in the middle. Our heart, always,\" he said. \"Tonight’s episode of 'Riverdale' finds Fred doing what he does best--helping Archie. It is dedicated to Luke, as all episodes will be for the rest of our run.\"

Doherty also posted about her dear friend at the time, writing, \"Yesterday morning I got a phone call that devastated me. I’m struggling with this loss and am having a hard time with my thoughts. But, my heart goes out to his family and friends who were blessed by his light in their (and mine) lives. Processing this is impossible right now.\"

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