They could save dev time on Part 2 and hopefully better flesh out both characters by writing Wutai+Yuffie into Part 3, and somehow have Vincent not immediately join when you meet him. He could watch from the shadows and eventually something occurs that requires his intervention.
It makes sense to have that extra selling point of multiple additional characters in each installment, assuming they're aiming for a trilogy at least.
It makes sense to have that extra selling point of multiple additional characters in each installment, assuming they're aiming for a trilogy at least.