Our Canadian brethren have been fortunate enough to have seen these in their stores earlier, but it looks like they are starting to come out in the U.S. too.
If you would like to search to see if your Target is holding the latest exclusives on hold in the stock room for you, here are the DCPI numbers you can use to check:
087-06-2061 Legends 5-Pack
087-06-2062 Voyager/Deluxe Comic Packs
087-06-2068 Animated Deluxe with Legends
If you have a sighting to share, help you fellow collectors out by adding your sighting to the database, and also posting in the appropriate Sightings forum thread.