Tether CEO Paolo Ardoino announced USDT has surpassed 400 million users globally.Tether is considering creating a domestic US stablecoin amidst regulatory changes.The company engaged a 'Big Four' firm for a full audit of its finances.Tether is diversifying investments beyond crypto into media and agriculture.Despite USDC's growth, USDT maintains dominance with $357 billion in transaction volume compared to USDC's $207 billion.Paolo Ardoino predicts a 'stablecoin multiverse' with many companies and governments launching their stablecoins.Fidelity Investments entering the stablecoin space indicates increasing institutional interest in the sector.Tether is open to creating a US domestic stablecoin, with a focus on the potential US market growth.Tether is working towards improving transparency by collaborating with regulators and undergoing a full audit.Tether's strategic expansion includes investments in media and agriculture, aiming for broader market presence.