Felix Ip, the Art/Creative Director at Imagi, has some very interesting images posted on his blog. Screenshots 01 features renders that weren't available at the time the trailer was run at Comic Con. Screenshots 02 features images from the trailer. According to the blog, character designs were modified after the trailer.
Gatchaman Screenshots 01
Gatchaman Screenshots 02
Also, from the comments, I would not expect Imagi's Gatchaman film to release until 2010. From the looks of their promotion, Astro Boy is definitely showing first.
IMPORTANT NOTE: There has been a lot of fan feedback on Felix Ip's site, and he appears to be listening. Go express your opinion.
Also on Butterboom.com, here are the newest pics of the logo and the team, taken from an Imagi sell sheet for the Gatchaman licensing company. The logo I saw at Comic Con. The team I didn't.