The developers said that before MCPE 1.2 we will see version 1.1.5. In this version will be made all the necessary software codes that will be required for future versions.
Release date will be around August 1-3. This will happen before you see the beta testing of 1.2.
Also in 1.1.5 are added to different themed texture packs and maps, with which you can have a good time surviving in the game.
Specific changes are not specified, but we assume that they are connected with a new Minecraft Realms and other functions for multiplayer games.