Alot there, almost too much.
Each character has new grapple moves, and these are generally quite elaborate, with spears and swords flailing around. The new renbu system isn't bad nor good, but is a slightly refreshing new feature. The 'breakthrough' feature is that players can now, wait for it… swim and climb! As sarcastic as I am, this can be good when laying siege to castle, and jumping from the top of mountains on your house is a cool prospect.
The game provided me with lots of fun at first, but after that the same levels can become tedious. Despite the issues, the game is a fairly exciting experience (yes, for me, the diehard fan) but doesn't come out with anything new. New players will enjoy it if they like to monotonously disembowel people for hours.