Kyle Samani, former co-founder of Multicoin, has predicted that Solana's on-chain market microstructure will experience unparalleled advancements over the next 18 months. Key developments include the Alpenglow upgrade, which will drastically reduce block finalization time to 100-150 milliseconds by simplifying consensus logic and introducing new mechanisms. This upgrade aims to provide a low-latency foundation for high-frequency financial applications. Additionally, Solana's roadmap features Application-Controlled Execution (ACE), allowing smart contracts to dictate transaction ordering and settlement, enabling DeFi applications to customize market microstructures. The introduction of Multi-Cluster Leader (MCL) will allow concurrent block proposals, enhancing throughput and reducing latency. Proprietary Automated Market Makers (PropAMMs) are also transforming Solana's market structure by offering low slippage and deep liquidity, now accounting for over 60% of DEX trading volume. Further enhancements include liquidity aggregators and conditional liquidity mechanisms, which aim to optimize execution paths and improve trading conditions. Overall, these innovations are set to significantly enhance Solana's on-chain performance and support complex financial applications.