It's a possibility. You never know what happens in this place with newcomers, after all. [Like how he and Mitsuki appeared at the same time. It was sheer luck.]

Ah, he meant that you will travel in the wild and fight with Gaia to defend yourselves. You only need to fight when you're not in towns.

But if Shinn is here and will come to you, yes... you two can travel together.