Developer Johan Bernhardsson has just shared some awesome new stuff coming in 0.8.0- all the wood types, and sponge!
Shown in the above picture, we can see the current Oak wood at the back, then Spruce in front of that, Birch wood, and Jungle Wood at the front. As you can’t find jungle trees in MCPE, jungle wood items will only be available from the creative inventory, same with the new sponge.
You’ll still be able to get it in survival mode if you use an inventory editor.
Here’s the original tweet-