Another preview from the last changes in the Starbases. You can see one small thing from the Rebellion addon. The Death Star is lost mostly by default (there is a chance for avoid it very small) in the battle of Yavin but after it, there is a mission where you must join some credits and you will get the Tarkin Station.
The Death Star II can be finished after the battle of Endor. Never before.
Other feature are the groups of fighters builded. For the future, I will add the option from to replace the fighters in the star destroyers by things as the TIE Advance or the Missile Gunboat. It will be a small upgrade but very useful.