Here is my suggestion: make witch able to let jailor execute himself. This should destroy the jailor meta. It nerfs the jailor quite a bit, he cannot reveal publicly anymore until he's sure there's no witch around just like most vigs can't/shouldn't reveal in witch game. Afaik witch can make vigs kill himself, its not that weird to let jailors kill themself either.
It's a simple idea, but should be quite effective against the current jailor meta.
What do you guys think?