Depending on how his Week 2/3 threads go with Jeina and Mifeng, Raito might actually be talking with them regarding Ambrose the scholar. Either that, or he'd actually try and talk to the scholar himself. In either scenario, the Imperial Dragon may be addressed by name, at the very least.

Regarding Zed, however...depending on how that goes, Raito is either going to believe that his 'brother' is lovesick...or there's something far worse going on with him. If the former, he's gonna try and play Devil's Advocate (and maybe do the whole brotherly threat to Ciel). If the latter, however...it depends on whether Zed pulls the whole 'darkness void eyes' on him.