When the update come out...
The next update should come out soon.
Mojang tend to update the game every 10-12 months as of 2016.
No. Updates are free. Just buy the game once.
on 2035
tommorow!!
It will be the 1.6 update, released May/June 2013.
The update came out today (October 25, 2012) !
In Minecraft PE the horses will come soon since the pocket edition will soon get that update.
Early April
April 3 2012
Never the next update is 1.3