Well so far, there really hasn't been any significant changes in how things have been playing out, but then we're in Platinum, not Diamond. It's still mostly typical for a GbG season. We'll see how things turn out once we start having to fight other guilds.
For those of you complaining about big guilds thrashing little ones, take a look at this:
See red?
That's one person. A bigger guild will dominate if they have the active players pulling their weight, but a small determined guild with good fighters can absolutely compete. Now up against 1000 LP guilds, that might be a bit different.
So far, I've been going for the Fortified Command Post and using the 20% attrition building to get it up to 80%, and some of the other guilds are doing the same thing. Of course red just had to fill the third spot on the province adjacent to us with traps, though I should admit I was planning to do that too with extra slots.
I probably made a mistake opening the two provinces next to HQ so soon.