In Issue 10: Invasion, as the update's named, the developer's explained it decided to advance the game's overall storyline and focus on alien threat to Paragon City and the Rogue Isles.
"Like any ongoing game we have many unresolved plot threads and each is a great opportunity for introducing new game content. Our first thought for Issue 10 was to bring back the 5th Column, a villain group that disappeared when the Council was introduced in Issue 3. But in the end we decided to focus on one of the greatest threats to Paragon City and the Rogue Isles, the aliens known as the Rikti," Cryptic's Matt Miller said in a developer diary.
"We had revealed a lot about the Rikti in the past, but there was always the looming specter of a second Rikti War. There were already plenty of missions that involve shutting down attempts by stranded Rikti to contact their homeworld. For current players, Rikti are a familiar enemy and remain a giant pain in the butt."
July 25, 2007