Alright, I buckled under and watched it. I really couldn't tell anything about what is going to happen at Terminus though, so I'm glad I watched it. Maybe they might be going to Washington DC but that's not really too much of a spoiler, obviously they can't die so they are going to survive somehow, they can't remain in Terminus and the show isn't about to end this season, and maybe some of the folks from Terminus might be coming with them. But there's a lot of hints of things involving fighting and distrust without actually explaining anything really, so I liked the trailer a lot.
Here's what we know for sure:
Zombies are still in the show
Rick doesn't trust the Terminus leader
guns are fired
Terminus people are creepy