Complex sentence: The successor of the PlayStation Portable, the PlayStation Vita, was announced to introduce the use of a new type of media for its software, Hence, UMD is expected to be abandoned for use on future systems.
Split into simpler sentences: The successor of the PlayStation Portable, the PlayStation Vita, was announced to introduce the use of a new type of media for its software. Therefore, UMD is expected to be abandoned for use on future systems.