I understand that there was no implementation of a multiverse into the EH system since it was a persistent universe system. I was hoping to open the door of a multiverse for this scenario to add a new level of play, with new interaction from points that don't already exist.

As for keeping your group there I do plan on there being a great deal of destruction within the EH universe as we know it, but there will still be room for players to write in surviving groups, factions, new alliances, ect... We are still in the early stages of developing the story, but we will keep people updated as we continue.