I recall a statement from Kevin Feige that all the scenes from the previous trailers happened within the first 20 minutes of the film. The scenes that were new here seem like they would fit into the first 20 minutes too. So new images that are very revealing but still not too revealing of the movie as a whole.
I will totally be satisfied if Thanos has at least a scene where he fights the larger cosmic beings in the universe, i.e. Celestials since we have seen they exists in the MCU, and then after disposing of them has to deal with the Avenger line up he disregards as a threat.