This game mixes a basic version of the planning of your next actions between battles from "Romance of the Three Kingdoms," and the battle system of DW4, which is a cool idea, but overall it doens't really add anything new except for maybe a couple of new maps that are really kind of small, and new sorceresses added to armies. The rest is directly recycled from DW4, which was kind of disappointing. I was hoping for more costumes or the characters from DW 3 but were missing from DW4 (like Nu Wa) to be added, but that didn't happen.
DW4: Empires also lacks the free mode for building up a given officer before going into story mode, which sucked, but since ther were enough battles in story mode, it didn't pose that much of a problem.
Overall I liked this game and am a huge fan of the DW series, but it really is nothing more than KOEI milking the franchise, which was disappointing.
score: 7/10, but only because I'm a DW fan. Otherwise, a 6/10.