"During an investors call, Ubisoft CEO Yves Guillemot shared his thoughts on single-player games, and he remains positive about their potential. 'Those types of games can continue to sell for a long time,' Guillemot said. He noted that introducing mechanics like RPG elements to single-player games can increase their appeal because they extend the game's replayability. Guillemot also said that Ubisoft is working on implementing user-generated content to entice players to continue playing these kinds of titles longer periods of time."
"Ubisoft's crossover Switch game, Mario + Rabbids: Kingdom Battle, is another single-player game that has been remarkably successful for the publisher. That title is the best-selling third-party game on Switch, and Ubisoft anticipates it will have a 'stronger than usual' sales tail as Nintendo continues to release more Switch consoles during the holiday season and beyond."
Taken from: Ubisoft Discusses The Future Of Single-Player Games