Just digging online, and found images for 28 of the 30 Topps team sets coming in April, 2012, to retail stores, stadiums, and everywhere in between. If you're wondering, there was no information regarding the Yankees team set and while the site that I did pull the images for the pictures above have a Blue Jays set for sale, there was no image (probably so that they can come up with an updated mockup with the new Blue Jays' logo).
If anything, this should give collectors an idea about what some of the other cards will look like (the pictures look really good...that design is starting to grow on me). Remember though that images are subject to change, and there may be changes as to whose card gets to be displayed (notice how Yadier Molina is the lead card for the Cardinals...). And yes, there is a Miami Marlins set, with new logo. It remains to be seen if the cards will include players with the new jerseys added in later.
Can't wait for 2012. Bring it on!!!