Now how to cut out netfix time?
Some things that increase netflix time:
-Waiting for resources for refleeting
-Grinding through AIs' brick wall defenses (I think this makes up the biggest portion of the nextflix time)
-Having to wait for a wave/CPA/whatever to hit just in case before the next (player's) attack
These are things that also deter new players from getting into AI War. Not sure how to fix them though.
#3 is an easy fix. #2 is half the fun for me. #1 will probably always be an issue.
Just throwing it out there, but what if resources were changed more to an "X resources per second = Y maximum ships" style thing? That is, instead of having 300/second from 10 collectors (or whatever) and having to wait 30 minutes to get enough to build your fleet, those same collectors mean that you can support 300 points of ships.
At that point, there's no particular need to wait forever to get the resources to rebuild after a fleet wipe. You already have them available, and can immediately start building again. It has to be delayed long enough that you can't just start an endless graveyard rush style thing where reinforcements are constantly joining the attack after a ship is lost, but it does solve the problem.
One of the things I really liked about Fallen Spire is that this problem was somewhat negated by the sheer number of systems you could/had to conquer to see it through. You would start gaining resources so fast that unless your Spire ships got taken out, you could rebuild everything at lightning speed. As an added bonus, it made some of the stuff from the Zenith trader actually viable, whereas it was utterly impractical to ever build it in a game where you're trying to conquer as little as possible.
The combination of "you can build anything, no matter how expensive, if you're patient enough to wait for it", and "the AI will wait for you if you don't antagonise it" really led to encouraging Netflix time.
You could probably also achieve something similar by having ships cost a resource upkeep, such that having a big fleet will lower your resource production, and eventually halt it entirely. That would let you still save for something huge (like a SuperFortress) if you wanted to, by running around with a smaller fleet for a while.