The next version of Android is increasingly close. If we believe the rumors, arrival is imminent. However, the update to our Android devices depend not only on Google, but depend on the OEMs. One of the most important is Samsung, and we have data that we can see what Samsung Galaxy devices will be updated to Android 4.4.4 KitKat.
A hopeful list
In the list we see the devices to be updated, the date to which will be updated and the update status. Where the Galaxy S5 and Note 3 you will see that the update is complete to android 4.4.4 Kitkat, and that the release date is this same month of October. Galaxy S5 and Note 3 might get updated to Android L. From there we see the other models, some already in the final stages of development (with upgrades in November).
However the list is missing Galaxy Note 4, not shown in the list is only logical to be updated to Android Lollipop (surely this will be the final name) so do not worry. Failure to exit the list is because Android 4.4.4 brings KitKat factory.