Very good question....
I am working on a project called AFTERLIFE (L8RS)
I hope to publish a whitepaper soon with an ICO Q3 2018.
It is essentially a decentralised will writing service for cryptocurrencies.
If you die the coins/tokens will be held in escrow for a loved one of your choice.
It will cover most tokens and coins and we are looking at integration with other platforms (exchanges & wallets etc).
It will be easy to maintain and fully secure for you and your loved one/s (both sides of the system).
We have a unique set of parameters to determine if someone is no longer with us.
Watch this space!