- right to control distribution of property through a will
- right to control method of remains disposal (up to a point)
- right to dignified treatment (e.g. no desecration of the remains)
- rights against posthumous defamation- rights to control how their likeness, name, and image are used posthumously
I fail to understand how this proposal would be any different.
The first one has been argued against quite nicely by Piketty, it's how you get plutocracy
The three other ones should not be treated as Rights since the concerned individual is no more, and they don't matter much anyway if coming against the rights of people (that means "living"). For instance collecting organs for the good of those who need, when evaluated, should trump any opposition on frivolous grounds.
I'm indead asking if the whole concept is not wrong and deeply harmful to societies