I really don't think DeepOnion has that much potential, it doesn't do much more than Zcash or Monero, so it doesn't really offer much improvements in privacy, as these are already anonymous. I don't think it has much climbing potential for 2018.
DeepOnion will support SmartContract and many other new features. You can do more based on DeepOnion blockchain. You can go to the official page to see DeepOnion new features and roadmap. Some new features , like DeepVault, have already integrated into the current version.
DeepOnion will be the first anonymous coin that can do a lot of things on it.