I'm in the UK too and haven't anything about this for a while. It seems like it's gone completely quiet on this front. I'll see if I can dig up any more recent info.
It's worth adding that I also have a US iTunes account and can get iTunes Radio through that.
I've been waiting for Canada to get it also, I have a US iTunes account that I can use but I have it signed in to my Apple TV currently since I can switch between both my Canadian and US iTunes accounts without issues.
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