Seems our source is more of a DC guy, but he isn't afraid to admit that he was very impressed by The Avengers movie.
With that, he offers a small bit of news in that The Avengers has not gone unnoticed by DC.
Regarding Green Lantern 2, Flash, Wonder Woman, Aquaman and JL, IF a Justice League is going to be made, which there isn't any concrete plans for, Henry Cavill WON'T be involved from what it looks like. GL2 and Flash scripts are still being polished before they are given the green light to go into production, and there isn't any current plans for any other solo movies at the minute. Things are quiet at DC Entertainment as they basically plan an attack in response to the awesome job Marvel is doing.
News of Henry Cavill not partaking in a Justice League movie is no surprise as previously director Zack Snyder has stated his Superman will not be part of any other movie. While last we heard it was a possibility, it seems things may have changed.
While we wait to see just what develops from Warner Bros., we do have The Dark Knight Rises to look forward to this Summer as well as the new Superman movie next June.