How many chapters this idea would’ve covered is something we don’t know, so it could’ve also been a mini-arc serving as a lead-up to the Vinland Arc.
Yukimura also mentioned that if he’s revealing these ideas now, it’s because he has no intention of adding them in the future.
This plan was ultimately scrapped, leading to a timeskip in the story. According to Yukimura, the situation in Ukraine and nearby regions around 2018–19 prevented him from doing the research he wanted for what seemed to be a Greece-based arc, leading to the idea being cancelled.
SNAKE’S BROTHER?! During his recent visit to Italy for Napoli Comicon, Makoto Yukimura revealed that he originally planned for Thorfinn to meet Snake’s younger brother in Miklagard. He would have helped Thorfinn’s group sell the horns to raise funds for the Vinland expedition.