There are three different neighborhood scenes shown behind the title, so my guess would be three neighborhoods.
Maybe the sims in the bar who resemble Erwin Pries and Cassandra Goth are meant to indicate that current teen and YA sims can both be sent to university (unlike in sims 2 where if you'd aged up from teen it was too late for you, since YA only existed at university). Which would also probably mean no non-traditional students.
I don't think it's a prosthetic arm, looks like a robotic glove in some of the still shots. I'm very interested in that holographic interface the girl was using in the robotics lab.
The choice of song had to be intentionally ironic, right?
