Maybe they're not yet able to solve the leaks on the water cooled buffalo models?
Or maybe they are still working on the secret formula for the coolant. You know, the proprietary stuff everyone will have to buy from them to maintain their warranty.
Or perhaps they didn't get enough advance notice of Willy G.'s retirement so they have to do a rush catchup job on the commemorative paint job they will apply to all 2013 models. Instead of skulls, they'll have a bunch of little berets.
Or maybe they need more time to figure out how to fix the issues on the HD-LAN system that they haven't fixed for two years on the Softails. It's about time they spread that technology to the other models, but it would be best to fix the existing bugs first.
I've got a bunch more, but that's enough for now.