‘Rick and Morty’ Team Gives Update on Recasting Process Following Justin Roiland’s Dismissal

Roiland, whose exit from the Adult Swim series was announced in January in light of domestic abuse charges, had voiced the title characters since its 2013 launch.

https://www.hollywoodreporter.com/tv/tv-news/rick-and-morty-update-recasting-process-justin-roiland-comic-con-1235541446/

'Rick and Morty' Gives Recasting Update After Justin Roiland Exit

Roiland, whose exit from the Adult Swim series was announced in January in light of domestic abuse charges, had voiced the title characters since its 2013 launch.

The Hollywood Reporter
I know they're doing this because it's a cash cow for them, but didn't the guy play a huge part in the show? I'd imagine this is probably going to be the last season unless by a miracle they can do without his writing and I think adlib?
I think Justin Roiland was by far the weakest comic and writer on the team.