User blog comment:JustSomeDude.../The Future of Caesar Clown/@comment-1595565-20130406055909/@comment-4899461-20130406171155

Yeah, my bet is that the exchange will go south on the bridge (shown on the map) between Green Bit and Dressrosa. This makes sense because the Caesar exchange team is made of all long range fighters. This would make some "keep away" with the key to CC's seastone handcuffs very easy. Doflamingo's powers would be really interesting to pit against Law's.

As far as extensive Marine involvement, I don't see it happening until late in the arc. Fujitora will be there early, but I don't see anyone else getting there. Smoker is the only one who knows about Law's plan, and he's recovering from his injuries from his fight against Doflamingo. I see more of an Alabasta-style thing, where the Marines just clean up the people who have already been defeated by the Straw Hats.