Superhero Genre 'Mined to Death'?

A lot of buzz about a lot of superhero movies in the pipeline today. [ See Tom's article on another half dozen new Marvel projects]
LA Times' Hero Complex has an interesting blog today with X-Men First Class' director Matthew Vaughn predicting that the end of the superhero film genre is nigh. 

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 Vaughn said audience fatigue is already starting to set in. The subject material can't sustain the Hollywood trample, he said, and the inevitable box-office duds and derivative projects will mark the end of the gold rush by studios.

"It is a crowded room," Vaughn said "It's too crowded."

There definitely is going to be a glut of movies next summer with Thor, Captain America, Green Lantern, X-Men First Class, etc. 
Now Marvel & DC's big guns will probably be huge earners at the box office, but I wonder will people keep turning out or will it die out like any other fad as they water the
genre down with poorly executed projects? This summer we saw two films in the superhero/fantasy genre utterly bomb - Nic Cage's Sorceror's Apprentice and Jonah Hex. Two things are happening here- for one studios see dollar signs and will pump anything out to make a buck. Second, films are getting progressively further away from mainstream household name characters. After this batch you've potentially got Ant-Man, Deathlok, Deadpool, Shang Chi, Luke Cage, and Magneto movies from Marvel. Meanwhile DC is potentially banking big on Green Lantern being a success as G-Man pointed out along with rumored Lobo and Sgt Rock movies. Image has Brett Ratner directing Youngblood with a big budget. Now, I'll probably watch all these movies the day they're released but I'm a comic geek.  How many people that aren't comic book fans know these characters? Will  people actually turn out to see Green Lantern despite the character's relative obscurity or will they ignore it as they did Hex & Apprentice?
 Vaughn has his own vision of where the genre is going:

 "I've always wanted to do a big-budget superhero film and I think we've kind of crossed the Rubicon with superhero films," Vaughn said. "I think [the opportunity to do one], it's only going to be there two or three more times."

"Then," he added, "the genre is going to be dead for a while because the audience has just been pummeled too much."

 What do you think, is the genre due for a downfall or is Vaughn still bitter that his Kick-Ass flopped at the box office and the genre will keep rolling until Squirrel Girl gets her own movie?