1. When marines will arrive in wano? Maybe in a particular situation?
2. What plans has the marine to intercept the pirate alliances, specially Yonkou's alliance?
3. If they decided to send a militar army to Wano. Who are they sending to the battefield? How many admirals and Vice's?
First, we already know if there is business between WG and Wano although this country isn't part of WG. We already seen the conversation scenes between CP0 and The Shogun. Even Orochi casually speaks threat to them with bringing out about Kaido as their back-up, and demanding Vegapunk to send to Wano as the requirement of the business agreements between both party.
The question is, what business is that? Is that only about kairoseki (seastone) or is there any?
Because The Shogun's demand is Vegapunk, I think this is about technology transfer. Wano want the modern technology and they will transfering the old tech, specifically how to produce tool from seastone. Can this happen? Is there a time to put this thing on the story?
Now, due the escalating tension after Kaido and BM alliance announcement, WG rethinking about the business agreement and somehow concluding and deciding to send their troops to Wano. This is because even though The Shogunate didnt seek conflict with WG but Kaido and BM alliance already announced their plan and somehow WG knew it news, maybe from Drake. So, they will send full armies of marine and half of Chiper Pool. And maybe, WG also asking help from the closest country from Wano which under their affiliation. What I believe is,
WG already produce the new battleship full of new thecnology. They will using this battleship for the last, like what we saw on Ohara, buster call, somehow. I dont know when will they should arrives at Wano because we already know what happen at the reverie.
One thing, why people did not considering about Revolutionary would appear at Wano? I think they will because of the mythology. When hanuman fought with Naga (dragon), god Indra help the dragon and after hanuman almost dead, god of Vayu help hanuman. Yes, hanuman as Luffy, dragon as Kaido, god Indra as BM, and Vayu as luffy's father, hanuman's father. You will know if you read the story.
Sorry for my english., and thank you