Since Greg Laughlin is associated with the radial velocity based planet searches and the discovery of another Gliese 581c-sized orb would be significant though not major (because we already know such worlds exist), I think it is likely that his team will announce the discovery of a planet (found by RV) slightly smaller than the Gliese 581c planet but slightly larger than Earth e.g. perhaps a 2-4 Earth mass planet.