You want info on a device that hasn't been announced yet and more likely won't be released for another 2-3 months.
OK, whats you question.
P.S.
Their is no main iPhone 5 thread and any talks here or on any website about the next iPhone is going to be pure speculation and not accurate information.
Nobody knows - Apple tends to keep info about new hardware announcements under wraps. Apple employees can be fired for speculating about what's coming out next to customers.
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The UK is normally in the first release group, so if rumors are true it will be September/October. It remains quite unclear what the upgrades will actually be ie. whether it will be specs only or a complete redesign.