Anybody are currently using Galaxy S4 or HTC One Google Play edition can upgrade to Android 4.3 (Jelly Bean MR2) now. The update is around 150 MB for the Samsung Galaxy S4 and 180 MB for the HTC One.
All phones using the Android OS customized by company or network will need more time or a lot of time can be up to Android 4.3. While the firm, the network are testing with their feature on 4.3 or decision that their phones to use whether or not on the Android 4.3
Seems as though Google made good on its promise for speedy updates to the Google Play edition phones, as this comes about a week after the official Nexus program 4.3 OTA started.