Aside, I wonder how long UK dialects will survive: my kids often come out with US Americanisms - of both word choice [garbage] and pronounciation - because of the media they consume.
I do not know much about UK dialects, but someday US will speak a Kiwi-influenced dialect. Received Pronunciation will survive due to preservation efforts.
perhaps in Geordie dialect!
it's actually closer to the "o" in "thought"