Not sure if I like Thanos crushing planets with a gesture to be honest, sounds like DBZ and it sounds like it will make the film jump the shark. Yes, I am aware of his ridiculous powerlevels in the comics, but one reason I like the MCU films is that the powers are relatively grounded, they do a good job at bringing the heroes to the screen in a believable way with at least some sense of balance (still very much over the top, obviously).
For example, how am I supposed to believe any of the avengers can fight this guy? Why, instead of crushing a planet, he doesn't just crush one of the avengers with all that force? There is a limit to what I can believe on the screen and I fear this film will cross that significantly.