Would like to see a sequel.
Here it is close to 20 years on I would like to see a sequel to Sling Blade.
Perhaps Karl is going to get out again, his health is bad and the state wants to get rid of him. Frank is grown up and now a mess, Vaughn has died. Another man like Doyle has come and gone in the Wheatley's life leaving Linda a hot mess and Frank sits in the middle of it all.
Perhaps Frank takes in Karl for his last months of life and Karl in his simplicity convinces Frank to NOT take a self destructive path much like what landed him in the mental hospital. The man who replaced Doyle is back in town and Frank is feeling the urge to get rid of him, the same way Karl got rid of Doyle.