Interesting if you rearrange these shots in order:

Probably Finn in the transport on the way down to Jakku. This one specifically lines up with one rumored shot list posted on MSW back in March.

Something Rey related probably since the shot list above lists the two Rey shots from the first teaser as scenes 33.1 and 35 putting this in between; and also remember that scene 35's shot was reversed in the first teaser, hence the fake continuity error.

Something on the Star Destroyer involving Finn's escape or Captain Phasma?

Rey and Finn are on the Falcon probably with Han and Chewie by this point, maybe on the freighter that involves the pirate fight, which also seems to be possible involving the corridor shot here.

This shot really feels JJ Trek like, with the camera quickly moving down from the ceiling.

In Maz's Castle most likely.

Could be R2 at the Resistance Base on the icy planet.

Other observances:

Note how BB-8 is being puppeteered.

Also, HOLY KALAMARI is Admiral Ackbar's head detailed. It's disturbing how real it looks to me.