From a long time many users were saying that Google will soon release Android 5.0 aka Key Lime Pie. When Google has released Android 4.1 all said that next will be Android 5.0 but then Google released Android 4.2 and now Android Police is reporting that Google will release Android 4.3.
Android Police has said that they had found evidence of Android 4.3 on Google’s server logs. There are devices internally which are running Android 4.3 and are labeled 4.3 build JWR23B. Currently there are Nexus 4 and Nexus 7 which are running this new build.
Google I/O is just 2 week away so we can hope that instead of Android 5.0 Google might announce Android 4.3 in it. Google might also announce new Nexus device in the same event.