New features that everyone waiting is Co-op multiplayer in which 2 players at the same time can control a single castle. It will not retain all elements from 2D while adding new features such as new units like the cruel Slave Driver, new beefed up AI opponents, dynamic on-map events like the Locust Swarm, as well as “new visuals, a new battle interface, and engine enhancements including effects, animations, and real-time physics. This game is first in Crusader series that have 3D Graphics engine.
Both things showed that what this new part has in this game series. The first trailer of the gameplay was published at games come in 2013. The first demo of gameplay was given to journalists at E3 2013.