[inisipis]

Spoiler for ch 481:

It looks like Love, Hiyori , Lisa and Hachi decided to stay on Earth and not join the Soul Society, Unlike Shinji and the rest. Perhaps they still have little grudge against them. Hiyori seems guarded and weary when she senses Shinigami presence before seeing that strange worm-hole

From what I gather Ivan is just a messenger for some top dude. Whether his visit is for some friend or foe exchange is everyone's guess..