Maybe PS4+Vita. But...that would hardly count as a megaton because it's practically indie.
The fact that Sony has built a new studio would be big enough news in itself. Also, we don't know what kind of game it is. Working on a Vita game doesn't mean it's indie. I wouldn't call Gravity Rush or Uncharted indie. We don't know how long this studio existed or what kind of people make up the staff. Nor how many for that matter. It's entirely possible that this studio has existed for a year or more, has plenty of industry veterans at the helm, and just hired in a lot of the students, when they were impressed by their work, to fill out the positions they needed.