Mounts and sailing boats is in. Also, this will be the last Witcher game.
“Imagine playing a dark fantasy game with the same great nonlinear story as in the previous Witcher titles,” says Badowski, “but now told in a world you can explore freely with no artificial boundaries. The war-ravaged world is so huge that to reach further places you will need to ride a horse or sail a boat to get there.”
http://www.forbes.com/sites/erikkain…k-time-events/