I have a hard time believing it's temp employees assembling the CVO bikes. How in the world would someone positively know they are temps unless you work there. How have they ruined the CVO line? They are selling well and by all accounts the buyers love them. It would seem to me they are more popular than ever and this webiste would provide some evidence of that.
IMHO, if anything, Harley needs to do more premium bikes. If you compare apples to apples with the market, Harley's are priced very competitive. With the CVO line they are reaching a new market sector with new demographics. The Ultra Limited is also another example of that. I believe they need more high end choices. For example, why not offer the Ultra Limited with a 110 motor option and maybe some more goodies. But limit the number of bikes to say 5000 with these options but price them lower than the CVO Ultra but more than the normal Limited. Car companies do this all the time. I could easily see this approach in each family; softail, dyna, touring, etc.
To answer the original question, I believe they should offer a CVO version as an option on most models but limit the number built. Each year would see changes but they should be offered every year. And as I state above, there should be some other high-end options beyond the normal recreational models but occupy the price point below the CVO option. JMHO