Will digital cameras replace 35mm cameras any time soon? It's not likely, but they could elbow out traditional cameras for various reasons, including ease of use and low operating costs.
Tomorrow is another story. With inevitable advances, it won't be long before digital cameras produce photos, if not superior, then certainly equal to today's traditional cameras. So in 20 years, don't be surprised if a kid tugs on your sleeve and asks the question: "What's film?"
To view the specs on several models, check out the Best Buy's table.