While a fix may not be out yet, Galaxy S4 users who are experiencing the issue can try on other alternatives. The first step would be with installing the Better Battery Stats application. Once the app is installed, let it run for 24 hours non-stop. Once done, look at the results and identify the power leech.
The next step will be with the System Tuner app. However, this app requires some rooting to be obtained. With it, users can kill the bug once and for all without having to wait for the fix.
Aside from all of the above, the only other way is to wait for the fix to be rolled out by Google. If so, then S4 users can look forward to Android KitKat 4.4.3 OS.