You see Cerberus forces everywhere - Blue Stars, Red Stars, Dark Red Stars, even your Yellow Star when you first begin scanning and clearing sectors throughout your star system.
Now, here's my thinking - to add more content to the game, and perhaps more ways to earn gems/credits, or even just add another event, why not add Cerberus Raids on your home star? It's shown that in Red Stars, they are capable of teleporting enemy ships into the system.
So why not make it a sort of wave defense event/battle over a certain amount of time, where you have to defend your planets from being destroyed whilst also fighting off the rest of the Cerberus Forces that come to raid you?
DUMPING LIST OF IDEAS:
1. Could be used to earn credits and hydro, gems or even just be another fun event.
2. It could revolve around planet defense, where destroyers jump into your system supported by Phoenix, Bomber, Colossus or other ships, and planets will also act as a "resupply" hub where you can reduce module cooldown on your combat/shield/drone modules.
3. Could be a toggleable feature, so people who don't want to participate in this could have it as a setting which can be turned on or off.