New update was just added to the game.
Now different random battle events can occur during missions. Neutral units that can attack you or your enemies, earthquakes, solar flares or space anomalies - a lot of cool stuff.

Right now there are about 10 different events in the game, later more events will be added.

Other improvements:

• Drone scouting energy price raised from 2 to 5
• Invincibility is now correctly lasts 3 turns
• health talents now add 40 health and accuracy talents now add 10% accuracy
• Improved victory screen
• Some adjustments to camera
• Some bugs with city maps fixed