My guess: the Devidian Episodes are being implemented, but inactive. If they would come at the 16th, it would be quite a traffic for the server, as everyone wants the new episodes. Also, Stormshade mentioned in his release notes, that we should check the neutral zone, "for a quick teaser of what's to come next weekend".
Then, there will be the new pet and some tweaks, I think. Maybe the new carrier configuration and the RSP-nerf.