Hello, the release of DApp is planned for Q4. Nothing is going to be changed since then, the information about token usage for DApps hasn't been revealed yet. More details here https://steemit.com/cryptocurrency/@wavesplatform/the-future-of-dapps.
The Waves smart contracts will include the following benefits and more:

• Support for multi-signature wallets, which cannot be controlled by simply one person alone
• No gas for non-Turing complete smart-contracts
• Comparable service to Ethereum, but both easier and cheaper to use
• The ability to immediately distribute and trade created tokens on DEX
• Support for atomic swaps in the future
• Support for token freezes
• Support for decentralized applications (DApps)

Best wishes,
Waves Community manager.