For more movie details of Man Of Steel (Jun 2013), check out my earlier coverage here. As for Thor - The Dark World (Nov 2013), it is a sequel to 2011's Thor with all the casts reprising themselves, including Tom Hiddleston as Loki (the same villain in The Avengers).
Short synopsis of Thor - The Dark World (source: imdb.com) :
Thor battles an ancient race of Dark Elves led by the vengeful Malekith who threatens to plunge the universe back into darkness after the events of The Avengers.
Now, enjoy the latest awesome trailers from the upcoming superhero sequels:
1. Man Of Steel (Jun 2013) - Trailer #3:
2. Thor - The Dark World (Nov 2013) - Trailer #1: