HTC America's president Jason Mackenzie responded (https://twitter.com/ScreamingPoetry/statuses/374531236007399424) to some questions on Twitter concerning the HTC One upcoming Android 4.3 update.
He says the Android 4.3 development for the HTC One is right on schedule and the rollout will start by the end of this month as promised. This applies for both the US and the EU HTC One units.
(http://cdn.gsmarena.com/vv/newsimg/13/06/htc-one-4-2-2-ota/gsmarena_001.jpg)
It seems HTC will manage to seed the Android 4.3 update ahead of the competition. Samsung is supposed to bring that release to its 1H flagship in October, and Sony (http://www.gsmarena.com/sony_announces_the_devices_that_will_get_android_43_jelly_bean-news-6458.php) is yet to announce a schedule for the Xperia Z updates.
Thank you, geordieboy, for the tip!
Source (https://twitter.com/ScreamingPoetry/statuses/374531236007399424) | Via (http://www.thefullsignal.com/htc/htc-one/15759/htc-one-update-android-43-still-coming-september)
GSMArena.com