What if you wait and it doesn't come out for another 3 years? Look at some of the people who waited for the 2011 SS and are disappointed because they thought there would be more upgrades. If you love the car and really want it, then buy it, don't wait enjoy it now.
edit: Also, when GM announced the release of the 2010 SS people waited a long time. They haven't even announced anything for the z. I realize they were making a brand new car and a lot of R+D went into it which takes time. The same principle applies, just don't expect them to announce the z and it be available a few months down the road.
1SS / RS / M6 / IOM / Black rally stripes / Polished wheels
It's a high school prom, it's a Springsteen song, it's a ride in a Chevrolet...