The sad thing is that many of the seiyuu have apparently been changed. (The source is Newtype (Earlybird), and I read about it on nanya-hime's LJ. Neither this nor the broadcast date has been published on the website yet.)
The changes are
Toyoguchi Megumi => Takamoto Megumi
Ookawa Tohru => Miki Shinichirou
Neya Michiko => Orikasa Fumiko
Matsumoto Yasunori => Ueda Yuuji
Murozono Takehiro => Hamada Kenji
Saiga Mitsuki => Nazuka Kaori
Okiayu Ryuutarou => Miyake Kenta
Satou Yuuko => Inoue Kikuko
Takato Yasuhiro => Shiratori Sai
Yamaguchi Mayumi => Takayama Minami
Zolof J Kimblee:
Ueda Yuuji => Yoshino Hiroyuki
I have no memory of this character - don't think he's in the first anime.
Let's just say I'm stunned that so many were changed! The two mains are obviously the same (it's on the official site), but what's happened to Ookawa-san and Saiga-san? MikiShin is great, especially for roles like this, but we're all used to Ookawa-san! Nazuka Kaori is also good...but for Maria Ross? Can't imagine it @_@ just at this point... Why is Ueda-san changing roles? (eto...I'm going to hate Kimblee even more than I already do!) And Envy's voice last time was perfect!
*grumble grumble grumble* I'll get over it. But it'll take a while...
p.s. Episode 22 of Gundam 00 was...interesting. And I really didn't expect that character to shoot so quickly! Unless we see a body next week (and perhaps even if we do), I'm just going to keep expecting that character to show up again! Go Kathy though, you rock!