Watch the First 'Glee' Season 4 Trailer!

The insider goodies from Ryan Murphy continue. The "Glee" creator has been posting videos, photos and spoilers for "Glee" fans on Twitter for weeks now, and he finally released a big one: the first trailer for "Glee" season four!

What can we learn from this 30-second clip fest? Here's the breakdown:

- Kate Hudson will be Rachel's dance instructor and NYADA, and she will not be very nice. Also, she's not a fan of the upper midwest, apparently. Looks like Rachel is about to get a dose of reality.

- With New Directions' numbers depleted, it looks like former Vocal Adrenaline member Wade/Unique (played by "The Glee Project" finalist Alex Newell) will be joining the group. Classy Brittany moment there.

- Sue is still on the glee club's side, ready to get "ruthless" about "protecting the integrity" of the group. Oh, and she finally had her baby, too.

- Kurt is indeed going to stay around McKinley for a while, at least long enough to bring in the aforementioned Unique and to see Sue's baby.

- Blaine (Darren Criss) will probably still sing a whole bunch of songs.

Check out the "Glee" season four promo below: