I think if the owner of the bitcoin dies without anyone knows how to get their password in wallet, the bitcoin will stay their because no one will know about it or access on it. Sadly but this bitcoin will be kept until the system change it. The password is too strong to be worth hacking with.
And it will reduce bitcoin supply to be less than 21 millions which will affect nicely on the price increase
Try to save your private key in somewhere safe. Perhaps one in wallet and one at home where you can ask your family to access it later