I don't see any reason why that would change in Lion.
Well, guess what happens every time a new window appears on the screen in Lion?
These changes in Lion are meant to reduce the number of things the user has to care about.
It was even shipped in Lion as a private framework.
Mail's new interface in Lion is perhaps one of the most welcome changes.
But the King declined to believe in the Lion any longer.
It seems that in Lion, that is one less thing to wonder about.
It will get fixes for smaller bugs that show up in Lion.
Users will also have new ways to launch, run, and switch between applications in Lion.
When an application is terminated in Lion, all the usual things appear to happen.