Thanks to Kris, over at Project Umbrella, he found the extended version of todays trailer. It hints at the fate of a beloved character, so be wared, its very spoilery! Its filmed off-screen at TGS, but at the moment, its the best thing available.
I've also added the first trailer to the site. You can check it out (if you haven't already) in the Resident Evil 5 Videos Section, under Trailer 8.
Resident Evil 5 Videos Page