Hoping there won't be many for those lucky/impatient/wealthy enough to get an '08.
I'd think since most of the components in the Challenger are already tested and proven/from the Magnum, Charger and 300, the only things that would be different are the length of "lines", driveshaft (should make that stronger), a slight change in the wiring harness, and a few different/new electronic items. The "guts" of the system should be basically the same, wouldn't you think?