HBO released a new production video for Season 2 on February 20, 2011 entitled Invitation to the Set:
I've broken down the video and have some speculation about some of the content. I originally posted a breakdown over at the Game of Thrones wikia but am reposting it here with the speculation as that site is spoiler free. There are mild spoilers from the book A Clash of Kings below but no major characters arc endings are involved. More after the jump.
It opens with a title card. The first shot is of Renly Baratheon, crowned and armoured with a Baratheon guardsman behind him. Next is Gethin Anthony (in costume as Renly) who says "Having completed last year it was a really wonderful feeling to be part of something so big, so detailed." While he speaks we see a shot of a duel and Renly and Margaery Tyrell clapping. Renly's costume includes a gorget with the antlers of house Baratheon which looked great. His crown is fairly understated for Renly but convincingly looks like antlers.
Lena Headey (in costume as Cersei Lannister on a set) is next and she says "It's pretty awesome being back in the big sets and, not awesome wearing corsets."
Peter Dinklage (in costume as Tyrion Lannister in Croatia) says "It's so lovely to be back on season 2. Now everybody knows each other, like a family." We see a shot of Joffrey Baratheon, Sansa Stark, Myrcella Baratheon and Tommen Baratheon seated beneath a marquee as Tyrion approaches them. The marquee is probably Joffrey's seat to view the small tourney he holds for his name day (A Clash of Kings Chapter 3 Sansa I) and Tyrion's arrival with what appears to be Bronn, Timett and Chella occurs during that tourney. The new shooting locations in Croatia look fantastic but I hope they can maintain continuity with the King's Landing of Malta from the first season. The interior sets should help in that regard.
Emilia Clarke (in costume as Daenerys Targaryen in Croatia) says "There was an overwhelming sense of pride from everyone who worked on the show and I think we can get that again for this season." We see a shot of Daenerys and Ser Jorah Mormont with brightly dressed bystanders. This fits with what we have seen of Qarth from the on location Croatia clip,
Kit Harington (in costume as Jon Snow in Iceland) says "It's going to be just as exciting for viewers. It's expanded even more, it's even bigger on scale." We see a shot of Jon Snow and Samwell Tarly on a frozen landscape.
Dinklage says "I think Season 1 is topped by Season 2." We see a clap board through a monitor and then directly beginning a scene featuring Dinklage.
We see Maisie Williams in costume as Arya through a monitor. She is reading seated on a walkway a castle flying Lannister banners. Executive Producer David Benioff says "We are journeying to all new locations so whenever possible we like to get it all in camera. Executive producer DB Weiss "We have got a great team put together to put something really fabulous on television, something really exciting and cinematic." We see brief shots of riders flying green stag banners, a scene being shot on a beach with a man in grey robes and a column of black clad men traversing a snowy landscape. The shots on the beach appear to fit with Theon's arrival to Pyke as seen in the Cold Winds trailer. I wonder if one of the grey robed men is Balon Greyjoy (Patrick Malahide). In the book it is Aeron who greets Tyrion but no casting announcement has been made for him.
I'm interested to see what they have come up with to give Dany more to do in Qarth.