Your bitcoin will be locked forever in your wallet not unless there is someone you trust has the access to your wallet, pr if you have left your access to someone before dying. The only option I can think of is to leave a Will along with the instruction on how to access your private key or wallet once you pass it on.
Or, if there is someone who able to hacked your wallet by doing random used of any private keys.
Next to impossible but that's the only way to access your assets if you didn't save your private key and there's no one who knows about your private key, the very reason why you should always backed it up and you should trust someone to know about the privates keys.
This is why you have to prepare a will for your child or family...
you can prepare it or keep all the secrets of your wallet in the reminder application and tell your family that one day if I die please open that application. if you don't have it set up then of course the coins stored in your wallet will just be there forever.
Your assets can only inherited if you formally have this last will or you provide information to someone you love who knowledgeable enough to use the system and enjoy all your save assets once you left this world.
