I wish you were right... but I'm afraid not.
1. the event goes until 9.11., so Friday in a week
2. there is no way to get more than the 10 souls (except in the shop)
3. whether other events in this month are related to the current event is unknown. Then it would be included in the event description I think.
There is some hope that the Fragment Event will be about Wanderer fragments instead of Lilith and a new event character (Magus Shinobi is missing by now, or?). The same is true for the sacrificial event. Only I don't believe in it.