*er-erm*
I was gonna make a Dragonite thread. Beat me to it D=
Yes, I think it's fairly certain that Aqua Jet is pretty much useless on Dragonite. I was excited momentarily, but it really just doesn't hurt enough to consider it, maybe even on a banded set. When I saw that Dragonite got Multi Scale, I was a little disappointed, but I've noticed in almost all the teams I make with Dragonite I have a spinner anyway, and rarely bring him out until rocks are gone, which does make his DW ability a little useful.
Unfortunately, the King of the Dragons has never had a lucky break all throughout the game's history, but this generation has given him some interesting new tools, one of which we've already mentioned, Gale. Sadly, Multi Scale Dragonite with Superpower is illegal, but the mixed set could still make use of Gale, as it could possibly replace either Thunderbolt or Flamethrower:
Dragonite@ Life Orb
Rash Nature
112 ATK/196 Sp. Atk./200 Spe
Draco Meteor
Superpower
T-Bolt/Wind Storm
Flamethrower/Windstorm/Roost
The stats may require some additional tweaking depending on what the metagame will look like. Additionally, you could add Thunder on a rain dance team. As for the the Bulky DDnite, it is, all-in-all, less threatening, however Multi Scale will *probably* allow it to survive a weak Ice Beam or Ice Shard or maybe even an unboosted Dragon attack.
Anyway, I came up with a very gimmicky set using the new attack Claw Sharpen. Before you die of laughter, consider the attack Dragon Rush. I have always liked the attack; and have always desired to find a place for it with Nite, because Dragon Claw tended to be too weak, and while Outrage is epic, I'm hardly ever lucky with confusion, and I'd much rather equip my Nite with Lefties or Life Orb instead of a Lum Berry. So, Dragon Rush. With Claw Sharpen, you don't have to worry about the accuracy, and you can pull off a paraflinch set while at the same time boosting your attack at the same time with Nite. Consider the following:
Dragonite@leftovers (or that item that makes support moves have priority - is that just a rumor?)
Ability: Multiscale
Nature: Careful
EVS: 252 HP, 80 Atk, 176 Sp. Def.
Claw Sharpen
Dragon Rush
Thunder Wave
Roost
If you're able to keep your HP at maximum while paralyzing the enemy at no end, you will be able to take multiple hits, support the team, and hopefully take some Pokemon down. While gimmicky, this set does seem like it can have some uses on teams. I am well aware that Dragon Rush only has a 10% flinch rate, but the paraflinch is just there for added pleasure. The great thing about this is that Dragon Rush is the most powerful physical Dragon attack with no drawbacks (except accuracy), and with +1 attack, it'll do a crapton of damage.
It's hard telling what will happen to Dragonite as B/W comes out. As of now, his only competition is Flygon and Kingrda, who are by no means pseudo-legendaries or legendaries for that matter. In spite of Dragonite's slightly underwhelming ability in B/W (why not Thick Fat? =/), I think he will always have uses in the OU metagame as a 'bulky sweeper', and a special place in my heart for all those hours spent leveling up my Dragonair until he evolved in Cinnabar Mansion before the E4 back in my first file on my Red Version.