As someone who has been gaming for a long time, the announcements of Senmue 3 and a Final Fantasy VII remake were happy times. I'm really looking forward to both of these.
Overall, I'd say the most important development in the long term is how close VR is to reaching consumers. Oculus Rift continues its slow march towards production, and we also saw Sony's Morpheus VR in what looks to be near production form. There were some basic games running on it that showed how immersive VR could be. It will be 2016 before it reaches the market, and it remains to be seen how affordable VR headsets will be, but it could be an important development that will change the way people, er, view, interactive entertainment in the near future.