Capcom has announced the fifth installment of the series:
Not much is known, but it's expected to play like a cross between RE1 remake and RE4. Possible characters that could return (this is speculation) are Chris, Billy, and Carlos. First images and a leaked trailer suggest that the zombies will be more like in 28 Days Later and Dawn of the Dead Remake.
More info is currently up at http://www.residentevilfan.com.
*Azier congratualates himself for beating Volt to the punch