One energy source won't necessarily take the place of natural gas in the future. Instead, it's more likely that the energy landscape will change throughout time, with various energy sources being adopted for various applications depending on their affordability, availability, and environmental impact.
As the globe continues to move away from fossil fuels in an effort to reduce greenhouse gas emissions and address climate change, renewable energy sources like solar, wind, and hydroelectric power are anticipated to play a larger role in the world's energy mix in the future.
According to Natural Gas Experts, Hydrogen, biofuels, and nuclear energy are further alternative energy sources that could be employed in some applications in addition to or in instead of natural gas.
It is important to remember that the future energy mix will be influenced by a number of variables, including technological advancements, modifications to energy laws and regulations, and changes in prevailing economic conditions. Future energy source usage is impossible to estimate with accuracy, and the mix of energy sources is likely to change throughout time.