Quite surprised nobody else has commented.
I really dislike this plan. I think Empire's piece sums up my thoughts quite well:
It really does seem like a brazen attempt to get in the average film "fan", the cinema-goer who enjoys the blockbusters and the box-office hits that don't really meet Oscar criteria but are popular.
I've had the debate a few times already on RAB ... and I agree that The Dark Knight is a great film. But is it art, in the way that a Best Picture nominee should be? No. Does it present a message, have a deep emotional impact on the viewer? Maybe a little, but shallowly. It's mostly about the thrills and the spectacle, great for its genre. But nothing more than that, really.
Perhaps I'm just being cynical and pessimistic about the whole thing ... but I'm not overjoyed by the prospect.