maybe there's nothing to do and if some years have passed the price of your hold is great, but it's best to put all your wallet info just as soon as your family finds it or you can tell them if you go procedure how to make money for not being able to work
If you die and you didnt let any one close to you know the key then you will die together with your bitcoin..others say you cant bring your money to grave but its wrong.. in btc you can die together with your bitcoin because those btc will die with you..no one can take it. So its up to you if you want with your btc on your grave or share your key to the one you trust and love.