There are two ways to view the new trailer... 1) With a technical eye on how a trailer is constructed/edited and how those technical choices elicit excitement/anticipation for the film. 2) A simple visual insight into the film itself...
In terms of approach 1 - yes, it's a trailer designed to highlight action and horror. Is it a superbly edited trailer? Apart from the first few shots I'd say it's a very averagely put together one (from a technical perspective), but that shouldn't be automatically viewed as a reflection on the film itself. Yes, it's certainly a generic trailer... However, in terms of approach 2 - we, the audience (and Alien fans), are getting our first real glimpse of the aesethtics of the film. It's certainly a lavish production and is seemingly going to be tonally darker, more claustrophobic, grittier and closer to the aesthetic of the original than Prometheus was. Other than that it's difficult to get a real sense of how succesfull the plot, pacing will be (the acting seems perfectly fine based on the trailer) or how 'scary' it will actually be. And my initial reaction is that the first few shots of the character trapped in the room with the back burster is infinitely more scary than anything in Prometheus, Aliens Versus Predator, Alien Requiem and Alien 3... which bodes well for the film. We'll see.
