Other than possibly giving a more defined timeline (or an update to the previously given timeline)... None. Just a comment about how the gigafactory is still on track for production in 2016/2017 will be likely all we will get. Anything more would be nice, but I don't know what else there is to say at this point about the subject.
Edit: Although, comments about how the buildout will affect their spending over the next year or so would be nice, since I believe most of the money Tesla is going to spend on this project is happening between now and the end of 2015.
There could be more details about other non-Panasonic partners. Elon recently described at a very high level raw materials would flow into Sumitomo and Hitachi for precursors, then into Panasonic for cells, then to Tesla for packs.. his as-a-matter-of-fact tone implied that at least those two were on board with the Gigafactory.