I doubt it, UK/Europe is still a small percentage of players compared to the all, and they still not pushed much in advertising for more, other then inside their TV channels and radio station.
I most UK/Europe users still find it themselves through internet, and thus UK website is much fancier and changed regularly, bit like a advertsing board. And offers/comps are desgned to hook some new subscribers cheaply.
I could be wrong here, but I think this a something they trying cos there probs a lot of UK/Europe free players signed up recently, and they hoping a couple of days free full access maybe cheap way of converting some of free ones to full subscribers.
I doubt they think this is necessary for US market, which is still much cheaper and well used compared to UK/Europe subscribing side.
'Keep it Kool
'