+ The first international trailer for Black Panther features a few seconds of new footage. (WAKANDA FOREVER!!!)
+ There are a few HQ stills of Infinity War making the rounds on twitter and tumblr (originally leaked on reddit). Many people seem to think that the trailer might be dropping soon and/or Marvel will be forced to release it now, like it happened with the Age of Ultron leak.
+ More screenshots here via reddit.
sources 1 / 2 / 3