Luke Perry, who portrayed Fred Andrews, passed away in March after suffering a severe stroke. By Dani Nick

Philadelphia (CW Philly) — Following Luke Perry’s passing in March, Riverdale showrunner Roberto Aguirre-Sacasa had to figure out the best way to write Perry’s character, Fred Andrews, off the show.

“We knew we had to honor Luke and address Luke’s death on the show. When Luke had passed, we had already pretty much plotted out the end of this season and written the end of this season. Rather than try to squeeze something in and potentially not get it right, we thought, ‘Let’s take a beat and let’s figure out really what would be the best way to honor Luke and to honor the character of Fred, and let’s do it at the top of season four,'” Aguirre-Sacasa told Entertainment Tonight. 

READ MORE: Brittany Adebumola And Joseph David-Jones Say 'The 4400' Is 'A Beautiful Companion To The Original'

Aguirre-Sacasa said that they “have an idea,” however, the complete plan is still under wraps.

“Honestly though, things may change over the next month, and I’d rather not say for fear of it changing,” he explained.

READ MORE: Batwoman Star Javicia Leslie Says 'I’m Really Excited For The Villains'

One detail has been establishedviewers can expect to see more of Molly Ringwald, who portrays Archie’s mother, in the upcoming season.  

“We love Molly and we always love having her. I think she’s going to be a bigger presence next season for sure,” Aguirre-Sacasa revealed.

MORE NEWS: Azie Tesfai On Becoming The First Actor To Write An Episode For 'Supergirl': 'It's Incredibly Personal'

Stay tuned for a season four premiere date.