I've screencapped just about ever shot from the trailer, so we can have a close look at what we've been shown so far. The big thing jumping out to me is that this looks like another really bad day for the poor old Enterprise, which at the very least gets blasted to pieces at all its vulnerable narrow bits, and maybe even crashes (though we've all seen that kind of trailer misdirection before). The alien baddies are small and numerous, and seem to have no problem destroying themselves to take down the Enterprise.
Perhaps the most telling shot is the over the shoulder shot of (presumably) Kirk from inside an escape pod, leaving the bridge and then showing what looks like the broken saucer of the Enterprise impacting mountains!
Whatever happens to the Enterprise, for at least some of the film the crew and ship are separated, as Kirk's "no ship, no crew" lines attest. Kirk doesn't seem to be the only one that abandoned ship, as we see several other crew-members disembarking from pods, including a new alien with pinkish hair/tentacles that features several times in a trailer (that might be Lydia Wilson, who was announced as an addition to the cast a while ago).
Much of the crew, including Uhura and Sulu, seem to end up captive on the planet which features most prominently.
But a few of our heroes end up elsewhere. We have McCoy and Spock looking after each other to look forward to (until Spock is whisked away by a curious new transporter effect at least).
While Scotty seems to have got planetside inside a torpedo (which promptly falls of a cliff)!
The most prominent character it entirely new, a striking white alien with black markings (Sofia Boutella), who seems to be an able fighter, and on our side.
A nice action-oriented twist on the Voyage Home jump into transporter beam trick there. Could the transporter room Kirk and this new alien arrive in be part of the unknown ship most of the main characters seem to end up on at some point?
Meanwhile back on the Enterprise, what looks to be the main bad-guy (is that Idris Elba??) seems to board the ship (did he arrive on one of those little fighters?), and tosses Kirk about a bit.
Running around on the broken Enterprise also features. Surely post-crash, or no-one could breath in these exposed corridors?
There is also another planet (or part of a planet), which looks much more metropolitan and Federation, and also seems to be under attack from those same aliens.
And to finish, an assortment of shorts of our heroes, doing things unknown at this point:
You can see this trailer on the big screen at the end of the week, when it was due to get its big reveal to a huge audience, being attached to Star Wars: The Force Awakens (I guess it being leaked prompted Paramount to bring forward the online release).
While I'm sure we can look forward to lots more trailers too, it's not until late July we can see that film (the initial early July date was pushed back a bit due to rejiggling around other film releases)
To keep track of all the latest information on Star Trek Beyond, check out my Star Trek Beyond guide page.