Norikazu Miura Talks Suikoden Tierkreis
 

First English interview that I'm aware of. We talk about the title, the contributions from other composers, and the prospect of having Miki Higashino contribute to the series again in the future:

Suikoden Tierkreis Interview: Konami Veteran Norikazu Miura Tells All

I admit that some of the info is outdated (arrange album, separate soundtrack release), but we did this interview some time ago. Hope you enjoy hearing from Miura regardless, it was a lot of fun.