Presenting the opening plenary presentation at the SPIE Optics and Photonics Conference [spie.org] in San Diego, Professor Artur Chmielewski, the US Rosetta Project [esa.int] Manager, gave a progress report [optics.org] on the mission. In addition to talking about the newly re-awakened Philae lander, he concluded with the exciting news, decided just days before his presentation:
We will be landing the Rosetta orbiter itself on the comet in 2016 so that will also be generating more exciting data.