Hi, first post.
UK-er here. Love the look of these sets.
I asked LEGO via Twitter and the response was that the Super Hero sets hit UK in 'January' and that the GB/EU lego.com store will be updated to show them 'after New Years'.
Here's the tweets.
https://twitter.com/#!/LEGO_Group/statuses/149051773942894593
https://twitter.com/#!/LEGO_Group/statuses/148796344084070400
But then again I wouldn't be surprised if these arrived in supermarkets/Tesco/etc a little earlier as Ninjago did last year - the LEGO Friends sets are due out here on Boxing Day too (I assume as a post-Christmas toy for kids to get with vouchers, etc, to make sure all the other LEGO range stocks sell through before being reduced), so they could come with those.