Marvel has released some GIF images in relation to the upcoming Legacy storyline that will see classic versions of their characters come back (Come on back Bruce Banner and the original Hulk!!!!!!). They are taking classic covers and re-imagining them. For the Hulk, they took a Ladronn Planet Hulk storyline and Mike Deodato did a cover with the Cho-Hulk. There were also a couple other covers for that took a classic Hulk cover.
Click on each image to see the original and the new covers.