As of November 22 is is suposed to come out in two weeks.
Minecraft pocket edition 0.14.0 update is out already! Soon will be 0.15.0
There are horses to be rumored coming to the Minecraft pocket edition. The update is unknown.
You can not get minecarts on minecraft pocket edition. Also, minecarts are not planned for the next update.
The horse update for Minecraft Pocket Edition will be out soon although no official release date has been disclosed.
No
In the next update.
No.
0.6.0 and above
no you must go into the app store to update it
yes
Its in the new update
Not currently, but possibly in a new update.