In a tweet responding to another player, the official Watch Dogs Twitter account said that the dev team is working on adding this feature to Legion. Though it will be added in a future update, no exact date was given.
— Watch Dogs: Legion (@watchdogsgame) March 14, 2021 Naturally, enabling cross-play isn’t exactly on top of Ubisoft’s priority list. As it should be, since Watch Dogs Legion still needs its multiplayer component to work properly. And with there being no word on when players can expect that to be fixed, anything else beyond that would naturally also not have a concrete release date. That being said, there’s also the question of if Ubisoft can fix the issues plaguing Watch Dogs Legion before players lose interest. The game was released back in October last year. Those who got the game early would likely have been done with the singleplayer campaign by now. Even the promised Bloodline DLC has yet to drop. (Source: Ubisoft / Twitter)