I've been looking over the GH released points and been a little depressed on how a number of the new factions don't have enough different things to make a very diverse army. In particular, the old High and Dark Elf factions are quite limited, using the same unit over and over while supplementing with 1-2 Behemoths/Leaders.
Here's a few of the really easy to make specific allegiance Order factions I'm referring to:
Devoted of Sigmar: 30 Flagellants, 2 War Altars of Sigmar, Warrior Priest, Witch Hunter - 980 Points
Eldritch Council: 20 Swordmasters, Archmage, Loremaster, Archmage on Dragon - 980 Points
Order Draconis: 15 Dragon Blades, Dragon Noble, Dragonlord
Order Serpentis: 10 Drakespawn Knights, 1 War Hydra, 1 Drakespawn Chariot, 1 Dreadlord on Black Dragon
Phoenix Temple: (It's unclear as to whether the Anointed on Phoenix needs to be counted as both a Phoenix and an Anointed, or just the Phoenix). Count Both Units Separate: 30 Phoenix Guard, 1 Anointed (on the Phoenix), 1 of Either Phoenix - 940 or 960 Points. Count Both as the Same: 20 Phoenix Guard, 2 of either Phoenix, at least 1 ridden by Anointed (If both are Frost, you can sneak in an Anointed on foot)
Scourge Privateers: 20 Black Ark Corsairs, 2 Black Ark Fleetmasters (Because everything else in this army is a multiple of 100, might as well take 2 FMs). Fairly open in what you take, but repeating Kharibdyss, FMs, Corsairs, and Scourgerunner Chariots.
Shadowblades: 1-4 Assassins, 20-30 Dark Riders. You'll get more Dark Riders with fewer Assassins, but it matches equally to 1000 points at 2 Assassins and 30 Dark Riders. Ironically, there's only 3 lists you can make if you insist on taking as many points as possible
Swifthawk Agents: 20 Shadow Warriors, 1 Skywarden, add to this Chariots Skycutters as you see fit.
I'm trying to illustrate that until these armies get expanded upon, there isn't much in the way of expanding a few of these armies past 1000 points unless you like repeating specific units. And in the future these forces are going to be expanded upon, so you'll want to be buying more things in the future, which may not be bad if you want to start at 1000 points. But unless you're a fan of the already developed factions, you may want to stick to the Grand Allegiances for Pitched Battle.
Oddly, everything that is Battleline is only Battleline when given the special Allegiance.