I watched the last eppy tongight. I was satisfied with how it ended.
I haven't read the novel, but I have seen the original mini-series. That too kinda ended on a flat note. And so did this one. I mean, there's a whole scene that's just Torinaga expositioning about how his plans will play out. And then it ends with Fuji and Blackthorne saying their goodbyes.
Someone expecting a huge-ass battle is gonna be dissapointed.
A part of me wishes they'd drawn this out another few episodes and actually shown the "battle". But then, it would have been a huge let down to have these armies muster only for the whole thing to be called on account of politics. I dunno.
As a whole, the series is well worth the watch. It's really strong in the beginning, and has some really damn great moments.