This is older news, but still interesting. The rumored venue is Easy Credit Stadium (fits around 44,000 for the World Cup) and an opponent isn't named yet.
http://www.del.org/index.php?id=1298...ca9a7dcfa2da40
English Translation:
The German Hockey League (DEL) is planning together with the Nuremberg DEL-club Thomas Sabo Ice Tigers a reinvestment of the World Championship opening game of 2010. At that time nearly 78,000 fans flocked into Veltins-Arena (Gelsenkirchen).
This time the Easy Credit Stadium in Nuremberg* should be the venue for the purpose of a Winter Classic on January 5, 2013. “An open air game has already been on the wish list of the DEL for a long time. Together with our extremely committed club the Thomas Sabo Ice Tigers we would like to now allow our wish to come true und provide our fans a cool experience”, explained DEL executive director* Gernot Tripcke.
Thomas Sabo, owner and name giver of the Ice Tigers: “We are excited that we could organize such a spectacular event in Nuremberg for the hockey fans and we hope we can get many other people interested in our sport.”
http://del-englisch.blogspot.com/201...-open-air.html