Tis the season of conventions! Here's another attempt at rounding-up all the newly announced series at this year's SDCC:

Bandai
- Lucky Star by YOSHIMIZU Kagami

CMX/DC
- Genghis Khan by HIGURASHI Nakaba and MORIMURA Seiichi (adaptation of the live-action film from Funimation)
- March on Earth by HAYASHI Mikase

Dark Horse
- World Embryo by MORIYAMA Daisuke

Del Rey Manga
- CLAMP In America by Shaenon Garrity （history of CLAMP in NA)
- Negima!? neo by FUJIMA Takuya
- Orange Planet by FUKUSHIMA Haruka
- Sohryuden (Novel) （novel, art by CLAMP)
- Yokai Doctor by SATOU Yuuki

Viz Media
- 20th Century Boys by URASAWA Naoki
- Dogs by MIWA Shirow
- Ikigami by MASE Motoro
- One Pound Gospel by TAKAHASHI Rumiko (re-print)
- Pluto by URASAWA Naoki
- Tegami Bachi by ASADA Hiroyuki
- Waq Waq by FUJISAKI Ryu

Viz Kids
- BakeGyamon: Backward Game by TAMURA Mitsuhisa
- Dinosaur Hour by SHOYA Hitoshi
- Happy Happy Clover by TATSUYAMA Sayuri
- Leave It To PET! by SONISHI Kenji
- Pokemon - Diamond and Pearl Adventure by IHARA Shigekatsu
- Pokemon: The Rise of Darkrai by TAKAMISAKI Ryo

Yen Press
- Cat Paradise by IWAHARA Yuji
- Cirque Du Freak by Darren Shan (story) and ARAI Takahiro (art)
- GA - Geijutsuka Art Design Class by KIYUDUKI Satoko (4koma)
- Ichiroh! by Mikage (4koma)
- Kieli (Novel) by KABEI Yukako (novel version)
- One Fine Day by Sirial (manhwa)
- Oninagi by ISHIDA Akira
- Sarasah by RUY Ryang (manhwa)
- Step by YU Yanshu (manhua, full-color)
- Toxic Planet by David Ratte (French, webcomic)

Edit: Some links updated
Edit: Correction: Funimation's Genghis Khan: To the Ends of the Earth and the Sea is a live-action film and not an anime as previously stated
Edit: Added Dark Horse
Edit: Added and corrected some stuff for Yen Press
Edit: Added 20th Century Boys licensed by Viz Media
Edit: Correctly linked Yokai Doctor (thanks, digitalr)