I read that Kings Dominion had officially announced the addition of two new rides to the park for 2009, but didn't actually see a release anywhere!
Thankfully for the park they have KD Fansite to keep up with their news, as the site has published the official release detailing the addition of the new attractions.
Both the Americana ferris wheel and El Dorado spinning ride will be added to the park near the Hurler and Rebel Yell wooden coasters. Both rides were formerly located at Geauga Lake. The Black Squid flat ride was also moved to the park but will not be added.