First of all, I'd like to open and say (for those who don't know) that I really enjoyed X-Men Origins: Wolverine. It had its script flaws and then some, but I found it to be entertaining enough. It did the origin story well and the action was excellent, IMO.
Anyways, let's get to the main article:
1. The violence
One of the drawbacks I had with Wolverine was its lack of blood...like, Wolverine would stab someone, but you would see very little blood (if any). Wolverine is a very aggressive character, and I'd like to see more blood/gore in The Wolverine. I very rarely watch R-rated movies, but if they need it to be R to tell the story well, then I'm for it. The director wanted to make an R Batman movie, so I imagine he'll make The Wolverine R. I'd like the violence to be reminiscent of X-Men Origins Wolverine: Uncaged Edition, with movies like claws-in-head, blood splattered all over the place, and then some.
2. The suit
I would like to see Wolverine don a costume similar to the yellow one he wore in the comics, minus the mask. Have the stripes in the usual place, but change it up some to modernize it. I don't think blue gloves are necessary...but keep a blue belt.
3. The plot
Open up with how Wolverine came to Japan to begin with. I'm aware that an after-credits scene showed Wolverine at a bar in Japan, possibly teasing The Wolverine. Explain why he travels to Japan (although we all know that it'll be to train there...but not every single person who goes to see it will likely know that unless they read the plot ahead of time). If they bring Sabretooth back, explain why they're enemies again after they became friends again at the end of Origins.
4. The villains
What better time to introduce the Silver Samurai than now? I'd like to see a Batman/Ra's al Ghul type relationship here with Wolverine and Silver Samurai...have SS train Wolverine and later in the movie, engage in epic battles.
5. The tone
With the gory elements, the tone is supposed to be very dark. Make it so dark, it'll make Origins seem like Spider-Man in comparison.
6. The script
Don't pack in with almost all action (unlike Origins). Include plenty of room to breathe, but at the same time have plenty of bloody action. Ala, have the balance that movies like The Dark Knight had. Also, include some of the character's outcomes (like Stryker, Deadpool, etc) without them actually being in the movie, just so people who remember Origins will know what happened to the characters.
7. The soundtrack
For the slower moments, include an Oriental score. (duh...it's Japan. Whaddya expect?) But include heavier rock instrumentals for the graphic action scenes (ala, Disturbed or Breaking Benjamin), and for the final battle sequence, include a dark score (something paying tribute to Hans Zimmer).
Well, those are a few things I'd wanna see in The Wolverine. Guess we'll see how violent (and good) it will be sometime next year.