SEC extends review for Bitwise Solana ETF, delaying the decision and moving the analysis to a later date.XRP, Solana (SOL), and Cardano (ADA) ETF approvals are postponed until late 2025 due to regulatory scrutiny.The SEC is focusing on investor protection, market risks, and compliance with securities laws in the review process.Delays in ETF approvals are attributed to concerns about volatility, liquidity, and regulatory implications in the cryptocurrency space.