There have been many threads on the topic.
To save space, here's a central thread to discuss anything that will be or may be coming soon to Minecraft.
Keep in mind,
you may come across a few spoilers when going through this thread
Inspiration:
The new flaming blocks Jeb showed on the ground of the Nether look really damn cool^^
Polar bears!?!?!?! This can only mean one thing new bear like mobs are coming!
there will also be functionality (and new textures) for the structure blocks according to jeb
you will be able to save structures into a folder in your minecraft worlds directory
and if you can't wait for this, you can always try the mod shown in this video:
here is the link to the download(s)
P.S.- i did not make this mod
The 1st 1.10 snapshot is confirmed for tomorrow