These updates can include enhancements in performance, features, styling, or even addressing any known issues from previous versions.
If you are considering purchasing the KTM Duke 390 and it's already November 2018, it might be worth waiting for a little longer to see if any official announcements or information about the 2019 version are made by KTM. You can check KTM's official website or reach out to local dealerships for the most accurate and up-to-date information about the new version.
Additionally, you can also consider factors such as your immediate need for the motorcycle, your budget, and the availability of the current 2018 model. If the 2018 version meets your requirements and there are no significant changes announced for the 2019 version, you might consider going ahead and booking the 2018 model.