If I see another person saying about the 'What if the carrier logs off?' question, I might strangle them for not reading posts.
All the issues with player carriers have been solved.
It all works.
No problems.
Only issue that apparantly has been sighted occasionally is some lag but that needs proper testing since it's very sketchy evidence at the moment.
The question is though.
Is it needed?
Most enemies are never more than 1 system away from each other and can easily just travel for 2 minutes to get to the place they need to be.
However, carriers could serve as mobile support platforms, re-arming etc Bombers mid fight (Adjustment to server rules would be needed but that is not much of a problem) and generally serving as a place for the ships to repair etc.
You might say 'Then fights would go on forever!'
Shoot the damn carrier down, then mop the enemy up.
So yes, all in all it is 99% working and possible, just needs some larger scale testing to be 100% sure.