Heavy Ion Physics in the Future

Bevalac started its operation in 1970, which was an initiation of this field. Then, 15 years later (in 1985) both AGS and SPS started their operations. After further 15 or 25 years, RHIC (in 2000) and then LHC (in 2010) started operating. Present highlights are centered at these two facilities. However, how about the future direction in this field? Here, firstly the past achievements of RHIC and LHC are reviewed, and then the current and future issues are considered. Finally, the scope on the lower-energy region, in which I am currently involved, is described.