Stakenet (XSN), a PoS/Masternode coin with huge potential, yet underestimated.
The developers are really in the process of innovating:
Trustless PoS (TPoS) is their offline/cold staking solution. It's already available and works perfectly. You get staking rewards while your XSN coins are offline. This is obviously much safer than staking on a hot wallet. They have confirmed integration for Ledger and Xeeda hardware wallets so it will be soon possible to do the same with these devices, which will be even more secure.
They were the first PoS/Masternode coin to implement SegWit, Lightning Network and Atomic Swaps.
They recently achieved Lightning Network Payments and Lightning Swaps.
This is the first step towards true scalability and Cross-Chain capabilities (such as Cross-Chain PoS).
They are developing Cross Chain PoS which means you can stake XSN but be rewarded in any other Bitcoin Core based coin (Bitcoin, Litecoin, ...)
They are also developing a Decentralized Exchange (DEX) entirely managed by masternodes.
Masternodes will derive additional revenue from the operation of the DEX and from privacy functions (TOR network).
This is one of the projects to be closely followed in 2019.