Filming in what could be Derek's loft.
Some weird ass shit purpley stuff
Pali Beacon Hills High (getting days off for shooting smh)
in Northridge. One pumpkin = fall/halloween ep obv (maybe tied with the glow in the dark/rave scene?)
Additional things from the wikia:
Teen Wolf shoots their woodsy scenes near Thousand Oaks.
VV Harry Potter like campy scenes with all the woodsy shoots
Arden Cho is going to be through the whole season
School shoots at Palisades Charter High School in LA (school also got a day off for filming)
Jen Lynch is directing 3x17
MMA Fighter Tyron Woodley was also on set