With Dinnerbone being excited about 1.6, I think we can safely say 1.6 WON'T be a water update. As previously mentioned in this thread, dinnerbone has a strong disliking of working with water related objects / mobs.
Excluding the red dragon (for the same reason which LegoShokwave123 referred to), this is an awesome list of mobs. I would thoroughly enjoy the addition of any or all of them! Especially the fish and bees...which would certainly add some life to otherwise "dead" areas of the game.
Lol, if it wasn't for Mojang and Notch, you wouldn't even have this game to play. They have every right to make additions to THEIR game...did you make it? Didn't think so! Just be quiet and enjoy the freaking game
Wow, it makes me sad to think that one day, Mojang won't be adding stuff to the game. The game will be complete someday, at least on their part. While there will always be new mods, it's just not the same as additions Mojang makes to vanilla. All this "cleaning up the game" has me wondering if we're inching closer to that point...i KNOW for a fact MOD API will get us closer to Mojang's completion...the mod community will be able to answer requests by the community much quicker than Mojang is able to..