A Watch Dogs: Complete Edition page was discovered on the ESRB rating agency website , which, judging by the description, will be released on consoles of the current and next generations. According to the July leak of various editions of Watch Dogs: Legion, the first part will be available only to owners of the Season Pass for a while.
Whether it will be a full-fledged remaster with graphical improvements is still unknown. But, most likely, Complete Edition implies at least all released add-ons, as well as cosmetic sets like costumes and cars.
We are waiting for the official announcement from Ubisoft. PC Watch Dogs: Complete Edition has been available for a while now.