Without a superstar / powerhouse designer like Bill Mitchell in place, you will only see evolutionary designs from GM unless market pressures force Reactionary designs. There may some exceptions here and there, but not on a low volume, all or nothing line like Corvette.
They can affort a design mistake in a cavalier, the sunbird will pickup the difference in sales and modications can be made at Year End. But the vette with its is low volume is a buy it or it dies situation. The risks are high. A few of you might want to see a radical redesign like that little blue pointy job, but if enough people don't like it, it could be the death knell for the Vette.