Beginning in February 2015, Marvel Comics will feature 20 variant covers drawn by acclaimed artist Phil Noto. The covers, some of which are shown here, are done in a retro style. Announced at New York Comic Con last year, previews of Noto's covers have since been featured in various sites catering to comic readers.
Learn more about and see more examples of Noto's stunning nostalgic Marvel covers here and here, as well as at his Tumblr.