Yes (99% sure).
Not necessarily, he's not the sole writer like in Heavy Rain/Beyond. And honestly we already saw almost the entire scene and it looks really good for a Cage game.Oh boy, another situation that David Cage will most likely portray poorly.
I've never seen the two words "Quantic" and "Dream" squished like that before. Everything else is the same.
the cageverse, the ending cutscene apartment was the one from fahrenheit. they're all connected!