Radio technologies have proven a rapid and multidirectional development with the launch of analog cellular
systems in the 1980s. From that point, digital wireless communication systems are consistently determined to satisfy the growing need of human beings. 5th Generation Mobile Network or simply 5G is the approaching revolution of mobile technology. The highlighting features and its convenience are much beyond the presumption. With its ultra-high speed, it is adequately expected to change mobile broadband’s meaning and importance. This review paper discusses the future of Sri Lankan mobile broadband and its industry with the upcoming revolutionary 5G technology. By manifesting about 5G and its expectations, this review paper also discusses the current situation of the mobile broadband industry in Sri Lanka and how 5G helps to improve efficiency in both the public and private sectors. Additionally, this shows the obstacles that must be expected when implementing 5G networks.