Oh you can pre-order? That's awesome, it should come with the Nobunyaga costume package.
I've been playing a bit so far, it's pretty fun, but it looks like first timers to the "Empires" genre are going to have a little difficulty on their first play.
The only Empires game I played was a Samurai warriors 2, waaay back then. I like this game so far though, still a lot for me to learn xD.