FIFA 14 features such as Ultimate Team will carry forward from Xbox 360/PS3 to Xbox One/PS4 without an issue, but your Career Mode progress will be lost.

As a way of rewarding players who have already sunk time into the current-gen game, EA has detailed the Career Mode bonuses they'll receive when transitioning to the next-gen version.

Tier 1 = Played at least 15 games

• +1 to all Career Pro attributes

• 1 Top GTN scout for one season

• +15% Initial transfer budget

Tier 2 = Played at least one season

• +3 to all Career Pro attributes

• 1 Top GTN scout for one season

• +30% Initial transfer budget

• Rematch Ability

Tier 3 = Played at least 2 seasons

• +5 to all Career Pro attributes

• 1 Top GTN scout for one season

• +60% Initial transfer budget

• Rematch Ability

• Edit Player functionality

When you load up FIFA 14 on Xbox One or PS4 the game will recognise if you've previously played Career Mode on current-gen and inform you of any perks which apply.

Source: EA Forum