I have to admit, Lego had one of the more fun booths at NYCC. They had a large space with open lego bins where people could play freely with Lego bricks, as well as attach them to the walls of the core booth. Kids were swarming all over the place which was great to see.
As far as new product goes, not a lot was on display. The main thing lego was showcasing was their TMNT, Hobbit and Super Hero lines, although nothing new was shown from the Super Hero line.
Teenage Mutant Ninja Turtles
I'm surprised that this took as long as it did. These sort of seem like a natural fit. On display was the new vehicle and figures as detailed in the recent press release.
These sets look really great, and include both the Shire and some kind of Goblin King Battle> You can view more details on their press release.