It looks like Blizzard Entertainment is going to release a new Battle Chest version for Starcraft II. Amazon listed the product, which you can preorder right now with this page. A photo of the box art can be seen below this paragraph.
The Amazon listing did not indicate what will be added to the StarCraft II: Battle Chest. For the collection of the first Starcraft, Blizzard included the original release in addition to Starcraft: Brood War along with the two official strategy guides. So we may see something similar with the second mainline game of the franchise.
Starcraft II is split into three games. The first release, StarCraft II: Wings of Liberty, came out in 2010. StarCraft II: Heart of the Swarm then followed in 2013. For the final game of the trilogy, StarCraft II: Legacy of the Void, a release date has not yet been announced. However, a beta is expected to begin next year.
Unlike Heart of the Swarm, Legacy of the Void does not require a copy of Wings of Liberty to be played. The third release also comes with two new modes with Allied Commander and Archon Mode in addition to some changes to the multiplayer.