A Maleficent poster was the free gift...no free figure.
Merida was the 2nd character announced as expected. Pictures will surface at some point. I am expecting some more info will most likely be on toy box tv tomorrow, and the official trailers for Maleficent and Merida will most likely be released soon. This is all of the info that i have been sent so far.
There is currently a new Maleficent toy box called Malef Castle by Disney Infinity that can be downloaded off of the Disney Toy Box Share.
The trailers have not been posted yet, but they will eventually be on Disney Infinity's youtube channel when they are ready to post them...no release date announced. Someone on the forum will post immediately after they see any new videos are released.