If we are to take them (the modern ID movement) at their word, it is all spelled out in The Wedge Strategy.
To see intelligent design theory as the dominant perspective in science.
To see design theory application in specific fields, including molecular biology, biochemistry, paleontology, physics and cosmology in the natural sciences, psychology, ethics, politics, theology and philosophy in the humanities; to see its innuence in the fine arts.
To see design theory permeate our religious, cultural, moral and political life.
Absolutely unrealistic to the point of disengenuous. My take on the thing -- and I've been following the FR debate on it carefully -- is that they'll get a couple of school boards in a couple of states (say 12) to adopt ID. This will hurt America's standing in the scientific community, but not much. Mostly it'll just hurt the kids who go to school in those States as well as the States themselves. Along the way somebody, somewhere will be making money off the conflict.
Science always triumphs. It may triumph in China in twenty years, but ID is not going to slow down scientific progress.