More over the top? Compared to what? John Wick? Or the first Kingsman? Because I gotta say, the first Kingsman's action was already over the top.
Personally I don't understand this "must outdo the first one" mentality, even with action films. JW 2 did this, and I found it to be a fairly dull movie by comparison. It had less of the tension and style as the first one, despite more action scenes and fighting.
So I don't really care if they do "more", I just want them to do it WELL. The majority of what I enjoyed about the first Kingsman didn't have anything to do with the action to be honest. Sure it was enjoyable, but it was more the spirit of the action. It had a funloving, carefree feel to it. They reveled in the insanity of it, and embraced it totally. I mean, any movie that has a colored choreographed, head exploding sequence, set to music, is just silly, and that's fine. I was more involved in the story of the characters, of his effort to become more than what he was, and his inner struggle with the idea of what it meant to be a gentleman and a Kingsman. And the efforts of his mentor to show him that breeding has nothing to do with character.
THAT was what made the Kingsman good to me. If they continue in that vein, I will be totally fine with it.
As to the trailer itself. It looked fine, nothing really grabbed me about it one way or the other.