The Ending
The Ending to Watch Dogs is an interesting one. While Watch Dogs is obviously setting up for a sequel, the dialogue running during the credits hints that the next game could be taking place anywhere in the country, as CtOS has expanded to many other major cities.
Possible Sequel
The post-credits video in Watch_Dogs is anything but subtle at hinting at a sequel coming in the future. The big question is - where should it take place?
Jordi's disappearance right at the very closing of Watch Dogs also leads to a few questions. Will he return for the sequel? And if so, will he serve as some sort of villain? He and Aiden didn't exactly become best friends on the lighthouse.
(Jordi also appears in a side mission, where he executes a civilian, but he doesn´t know he is being watched).