Oda writes himself into a corner the moment he made EL Luffy soloed Rob Lucci (the guy who was hyped by VAs), yet it took whole Straw Hats to defeat single Pacifista with some struggle yet some fodder alliance that Whitebeard brought to MF could defeat the Pacifista without much problem.
And then after timeskip, Luffy can already 1 shot a Pacifista while guy like Hyozo can easily block his attack.
This makes guy like Hyozo looks like a God compared to someone like pre TS Rob Lucci.
It's just that Luffy's power level is inconsistent, maybe because he isn't always serious. It's like back in water seven when he fought again franky and the carpenters, he looked like a fodder and then on enies lobby he was a beast.
Same will happen in wano. From one shot material for kaido to a tough fight.
Luffy and Zoro will never fight Mihawk and Shanks.
or if they do, it will not be on panel.
Hopefully you're wrong. Mihawk vs zoro would be epic. Their first fight was one of the best, both were so badass.
Luffy vs shanks, it depends on shanks' goal I guess, he has become more mysterious lately. But luffy has to show that he has surpassed shanks at one point in the story.