This chapter deals with what future holds and what could be achieved through studies of RTS. As mentioned earlier, globally, no earthquake model has been ever tested in the field. The problem is that in almost all earthquakes bearing fault zones, earthquakes occur at depths of 10 km or more, there are a complex mixture of faults and sources contributing to accumulation of strains and ultimate occurrence of earthquakes. It is very difficult to decipher the cause and effect ultimately leading to comprehending the initiation and progress of faulting. Moreover, most earthquake belts are in tectonically active terrains and observation and instrumentation surrounding the earthquake epicenter becomes difficult. In the case of huge water reservoirs, when they constructed in stable continental regions and in the case they witness RTS, it becomes much easier to monitor all aspects of earthquakes as it has been done at Koyna, India.