This is funny considering it is Sony who has revealed games way too early. The Last Guardian, Agent, Driveclub. Hell even Uncharted 4 was announced too early.
There has been virtually no leaks about this conference. Given what we expected from MS and what we saw, I think it's safe to say Sony will not be announcing much. A few third party trailers/demos (MGS5, Destiny, Battlefield) and some stuff exclusive games (The Order, Driveclub, Project Beast, Uncharted [no gameplay]). A little on indies, PS3 and Vita, some business and we are done.