Here's the invitation to a two-day Olympus "Touch & Try Event" just received by Engadget China:
We've heard strong rumors from numerous sources of an E-P3, E-PL3, and E-PM1 to be introduced at the event. We can also count on a "high grade" 12mm f/2, and there have long been rumors of a portrait lens in the works. Olympus' own roadmap showed an upcoming ~50mm macro, so it will be interesting to see whether we get a portrait lens, a macro, or a lens which serves both purposes.
I'm hoping to see Olympus pull off a completely unanticipated, Steve Jobs-style "One more thing..." on day 2 of the event, but it seems like none of the camera companies know how to keep a secret like Apple.