I have notice that in some of the mods, If you have the long range sensor upgrade on your station. You'll get an an warning when an enemy fleet approachs. The problem is that sometimes by the time you scroll thru the map, the fleet is already on top of you. I think an "autopause" option would make it easier to so you can make a decision to withdraw or reinforce.

 

  On to reinforcement. I don't know if this is possible but if an expansion does becomes a reality. It would be nice the ships already enroute to a system will becomes available in the reinforcement tap after a certain delay. I know this may be a problem if you have multiple fleets enroute but maybe limit the approaching reinforcement ot 1 fleet.

That would be nice so you don't get overwhelmed...but some people would like the challange I guess......maybe have that as a option you can turn on. I would get annoyed when I'm right in the middle of something, pause, unpause, battle, and forget what I was doing.