The comics industry is a few years away, if that, of radically changing the way it does business. If Marvel/DC arent careful, they're going to have a real problem.
There's no reason that already successful artists and writers have to do anything but create their work and find a place to let everyone know about it, like Twitter/Facebook/Kickstarter. See "Leaving Megalopolis" by Gail Simone and Jim Calafiore as reference. Or "The Private Eye" by Brian K Vaughn and Marcos Martin.
Once there's a consistent place to let people go and find new works, there's no need for a publishing company the way they exist now. Download digital, and print on demand (and I mean print in the commercial sense- not on personal printers, but hardcover graphic novels or regular comics). And once that community is there, new creators will find an easy way to show off their works.
Marvel/DC will still have it's amazing characters, but they'll no longer be the conduit for new creations. And DRM will be a huge problem for them. Good for Image.