I think the difficulty with torrents is that it is difficult to update and append new files without starting a new swarm from zero.
We need to move to the blockchain in the long term. Take a look at Sia Coin.
Sia requires no signups, no servers, no trusted third parties.
Sia encrypts and distributes your files across a decentralized network. You anonymously control your private encryption keys and you own your data. No outside company or third party can access or control your files, and they are working on filesharing features.