So, two games for the price of one?
Pretty nice concept. Too bad you'll be getting two shitty games.
So you've played them both already. Wow... that's pretty awesome! I'm jealous!

Doesn't matter, this will never come to the US.
I'm not so sure about that. Level-5 is looking to open an American studio, I have a feeling we will see it.
I hope the sequel finds it's way here, I actually liked the first WKC. 
I did too. The game is definitely dated and has it's problems, but it was fun! Especially the online.
The customizable combo system was pretty damn cool too.
Easily put 100+ hours into WKC and would go back to it before FFXIII ... that's for sure.
I think this is a cool idea. I never played the first WKC, but I've always been a little interested. Now I know to just wait for the sequel and I can play both only buying one game 
That's probably the best idea if you can wait for it. It's said that they are enhancing the original with the changes they are making for the second game. Not to mention the story mode in the first one is pretty short. Between 20 and 30 hours depending on how much you explore the ridiculously sized landscapes.
As I said... I liked the game, but it did have its problems. I wrote a very detailed (and odd) review about it for my site and gave it a 3/5. The game could definitely benefit from some improvements.
It took them almost 3 years to bring the first over. At Sony's rate you wont get the sequel until 2012
As was stated earlier... 13 months. 12/25/08 in Japan, 2/2/10 here.
The only reason the first one took so long was b/c Sony had to add a ton of shit to make the game more American friendly.
The original release had no chat whatsoever from what I understand. Sony added voicechat, text chat, etc. There were other improvements made as well. Enough for them to re-release the game in Japan with the changes made to the American version. Now Level-5 is working off of the "International" version's code base, so there won't be a reason to take as long this time around... well... hopefully.