This is pretty much the same trailer everyone at the IMAX screening saw last night, but with a few changes and one huge omission. Ronan speaks, but in exchange for hearing some of his dialog we no longer get to see the shot of him kneeling at the throne of Thanos. The trailer at the screening was our first official look at the Mad Titan in the film, so I assume they wanted to keep that glimpse exclusive to the preview audience.
And yes, that is Yondu toward the end of the trailer. Watch this and get hyped: