2009 Malibu's are the new body style, I have not heard anything about a "classic" version....and I wouldn't think you will see it either, don't think GM is going to mess around with something doing so well.
Chevy did offer the 2007 version malibu as a Malibu classic during the early part of 2008 year as a fleet option only with 3.5 engine. I found this out because I wanted to make sure I got the new model as a company car when I ordered it in March.
I think Chevy stopped Classic early part of this year.
They only made the "classic" last gen Malibu for the first few months of the 2008 model year, so there are some 2008's. But that's it. From that point on, they needed the capacity for the new Malibu and didn't see it fit to even bother making anymore classics.
So the '04 to early '08 one is done, with only a little overlap, and the Malibu now is the only Malibu.