Responses
I have to say, sadly, that is very unlikely. The oboro who spoke to Aizawa was probably like the ghosts in Izukus quirk, just remnants that became part of the quirk. Like AFO said when he took quirks he could feel the personalities of those the quirk belongs to, but they are not really alive.
If Eri returns all the hybrids she might just be restoring them to dead bodies and ... I wouldn't want a 6 year old to see that.

GO GO GO!!! I hope Eri knows how to use her powers. She might restore those hybrids.