What can I expect from it, without giving too much away? Is there more past universe 2? Are universes even a part of it anymore?
It has a few new systems like research and expeditions. Universes are a thing sort of but they are now realms which play in parallal to the first realm and you can move some unique stuff between them so new realms start by getting support from older ones then later they send stuff to the older ones allowing progression in them.