It's been rumored that it will be coming to Kings Dominion in 2008.
Screamscape;
10/3/07 - Local readers visiting Kings Dominion has reported on more survey stakes running from behind the Toonpike over to Scooby Doo, which seem to lock in this location for Dominator. However, we’ve heard that there are about 10 large circles painted on the ground under Hypersonic in the back of the park which are curious as well, though it’s possible they could just be marking areas where there are sensitive underground utilities.
I will be happy if it comes because KD got it's last major coaster in 2001. (HSXLC)