Upgrade to the Xbox One or PS4 version, and you may lose single player game progress
But CoD: Ghosts and BF4’s multiplayer data will be protected via server-based saves.
There are a lot of high street deals on offer which allow players who purchase certain current gen games to upgrade to a next gen platform version, such as this deal from GAME. Beware, consumer – the publishers of those games are warning that the bargain comes at a price.