It's highly unlikely that there will be another testnet reset due to the potential risks associated with it. The current testnet, known as Testnet3, was initiated in 2017 following a previous reset known as Testnet2. This current testnet is crucial for developers and testers to experiment with new features and improvements, including the implementation of smart contracts like atomic swaps.

Any attempt to reset the testnet would risk destabilizing the entire system, as it would create a completely different network from scratch. This could lead to confusion, inefficiency, and potentially harmful consequences. Moreover, the value of testnet coins has become substantial over time, with some individuals trading them for real money. Any change to the testnet would undermine this investment and cause disruption within the community.

Therefore, it's highly unlikely that there will be another testnet reset. The focus is on continuous improvement and optimization of Testnet3 to meet the evolving needs and challenges of the Bitcoin ecosystem.