EP 1 or M4/3 will not replace DSLR...
still some specific moments/ requirements that call for a DSLR...
the marketplace has just created a new market segment with M4/3..that's all
and the camera market has just grown bigger....and that makes the companies happier...
bigger potential revenue...
consumers on the other end just get spoilt with more choices....
win win!
Micro four-thirds could replace a dSLR but not in any of the current three bodies. Technology is constantly shifting and to say "cannot" or "will not" with certainty is really rather uncertain.