The PC version of Minecraft will be adding dyes and potted plants in the 1.4 update, as well as zombies and skeletons spawning with equipment.
Players will be able to dye specific types of armor to any color they like, while the 1.4 patch will add narrow cobblestones, so livestock pen walls won't take up as much space anymore - and are perfect perches for the new potted plants.
As for equipment-wielding undead, there's a chance they will spawn with a shovel or some armor. If that weren't enough, zombies will now attack villagers - even babies - and turn them undead. There's a 50% chance of this happening in Normal difficulty, and 100% on hard, so expect evil zombie babies crawling at you menacingly if you don't beat them back. Night vision may make it easier to deal with.