Though I'm already on the mirrorless revolution, I still can't say I agree on any death knells for DSLRs. ; When it comes down to it, all the areas where mirrorless cameras are not currently competitive will take many more generations to try to get them there (tracking focus, sports, EVF refresh, etc), then there's the whole issue of downsizing. ; While I love my compact mirrorless camera for when I want to go lighter, simple fact is I don't always ; WANT to go lighter...shoot with a long telephoto lens and mirrorless cameras feel ridiculously unbalanced - a big, beefy camera with a big beefy grip is hard to compete with in this regard. ; And then there are all the issues that come with downsizing - less battery life (by as much as 400% less), smaller buffers that can't handle lots of continuous frames before they have to clear, overheating issues for frequent shooting, and so on.
I'm all for the mirrorless evolution, love my NEX, but at the same time DSLRs are sticking with me for a long time to come - until they can make a mirrorless camera that is as big as an enthusiast DSLR with a fat deep grip, battery that can go 2,500 frames, buffer that can handle 50 RAWs at 7-10fps, built-in stabilization, and an EVF that exactly mimics an optical viewfinder in refresh, color, panning, and brightness (or a hybrid OVF/EVF). ; While that may be in the future, I truly don't think it's in the NEAR future...and even then, DSLRs are likely to live on as boutiquers anyway, for those who prefer them. ; The only caveat might be that DSLRs might morph into something akin to Sony's SLTs (which are DSLRs in all but name...they have mirrors, they just don't move them...and the electronic viewfinder takes its feed the same way the optical finder would).