Mojang claims players will be able to equip a second item in their left hand, or if you wish your character to be left handed, that's possible too!
An example was shown detailing how dual wielding would be useful by having the player holding a pickaxe in one hand and a stack of torches in the other. This would prove most useful for adventuring caves or dungeons.
Arrow types included a ghost-like arrowhead and a glow arrow which marks the enemy for a short time making them easier to track down.
Before releasing further details Mojang wishes to maintain game balance to make sure players are having the most fun.
Other future updates include Hunger and Experience bars, controller support, and the ability to further customize the games UI.