For EVE to be a big divided universe, it should take days for a fleet to cross from one edge of nullsec to the other, perhaps even weeks with interference, not minutes and certainly not hours.
Maybe an interceptor could do it in a day, but a capital ship.... moving these kind of assets should be a monumental undertaking in itself. A caravan in space. And once they get there, they should indeed have a big impact on a fight.
Divide and conquer is a time-honored and interesting strategic option, it should be one in EVE. Achieving local superiority has been the tactical tool of choice for millenia, why can't it be in EVE.
To travel from edge to edge? Sure. Though 'days to weeks' is cute in theory, but this is a game and if you go to an extreme with these things you are just going to lose players. On TQ right now, it is too short a time to travel. With these changes it'll take way to long.
And I'm not talking about going from one side of the cluster to another here. I live in covryn, I can just barely graze a couple systems in syndicate at the moment with these changes, and when I do I'll be waiting 6 minutes before I can get home.
What is more painful is when we use capitals for support rather than our main fleet. We are a small corporation/alliance so we rely on triage carriers rather than an overload of guardians because it means more pilots can be in battleships and we can take bigger fights. Carriers now lose 2/3 of their range, so roaming will become very limited as it stands. And no, you aren't going to bring your carrier through stargates with you. BS roaming is bad enough without having to wait 5 minutes for a carrier to cross a system with you.
We already have plans should these changes come in as is, but 80% of the ships in my hanger have no become dust collectors. I like the changes in concept, it takes away a lot of the power that PL in particular, but CFC/N3 etc too, have in the way they can and do deploy. It
might make it easier for people to claim space and can shake up nullsecs stagnation. But I think that they're cutting it down too much. If they decide to up the range and lower the timer, perhaps you need to keep the fatigue for longer to compensate.
It's all early days yet though, we'll see.