Since there is no additional corroboration for this leak we are labeling it a rumor for now. Regardless, it looks like a feasible time-frame so it could be legit. The above pic is supposedly the leaked schedule from Samsung for their rollout for Android 4.4 KitKat on several of their devices. The most notable parts of this list show the Samsung Galaxy S4 and the Galaxy Note 3 getting the KitKat update in January of 2014. If, so that would practically be a record time to get the newest version of Android onto new flagship devices after its initial launch.
The schedule above also denotes the Galaxy S3 and the GNote2 getting the update sometime between March and April of 2014. We will keep you updated with more details.