The successor of the Android 4.0 Ice Cream Sandwich is known and it will appear this year. The name will probably be Jelly Bean and this version of Android will be optimized for tablets. But, the newest information about this operating system is the possible and very probable name of the Android 6.0 version.
As the source told technology web site "the Verge", following the current logic of naming the versions, versions are named after desserts in alphabetical order (2.3 Gingerbread, 3.0 Honeycomb, 4.0 Ice Cream Sandwich, and 5.0 Jellybean), the next Android should be called Key Lime Pie.
This version could be represented in 2013 and still is not certain that the number sign will be 6.0. All previous versions of Android were released in November, so the Android 6.0 Key Lime Pie is not expected to be released until November 2013.