We haven’t heard about a Watch Dogs 2 yet, but this isn’t a bad substitute.
This cool mod by JulioNIB, which you can download here, puts the hacking abilities from the open-world game inside the PC version of Grand Theft Auto V. This gives the player the capability to do fun things like raise road blocks, switch traffic lights, and make things explode. You can see the mod in action below.
Note that the Aiden Pearce model is a separate mod, but you can download that here if you’re looking for an extra authentic Watch Dogs experience.