The publisher futcoins has not officially confirmed a new found relaxed stance, but users on Reddit and spotted by PC Fifa15Coins Gamer found that their copies of Assassin's Creed II and Splinter Cell Conviction were playable without active internet connections.
In the past Ubisoft's PC games would pause if the user went offline.An active internet connection is still required to validate the game when being installed, which has become standard practice for PC games in the last couple of years.