Olympus clarifies: it is about 4/3 lenses, not a new 4/3 body

I expect that any support for 4/3 lenses on m4/3 bodies is transitional, to encourage people who already have expensive 4/3 lenses to buy m4/3 bodies and to help sell the remaining inventory of those lenses. The next phase is Olympus moving towards offering higher level m4/3 lenses. Indeed, this year's 75/1.8 and 60/2.8 macro, along with the launch of the OM-D line, look like steps in that upward expansion of the Olympus m4/3 product range.
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Smaller lenses, better in low light, more telephoto reach:
you can have any two at one time.