Hello everyone from MLP mod ^_^
Next 2 episodes of my LP of this Mod are now up
Episode 10: http://www.youtube.com/watch?v=tA6zDiLXaBY
Episode 11: http://www.youtube.com/watch?v=W_uX7Ad-EFI
and on a side note DAMN U ALL I have started watching MLP and Enjoy it ><><>?<>< *Shakes Fist* * Goes to watch MLP*
Just as planned. Welcome to the herd. About trees, what you have to do with them is shear them at a farmer's workshop, then process the shearings to fruit at an orchard workshop, which should be b>w>O. In fact, the task should queue up automagically anf anyone with plant processing will handle it. And yes, for your sins, parasprites will have the pet tag in the next version. and a litter size between ten and twenty. The only real use for them will be as a source of skulls or as chaff, though, you open up a cage of five hundred them on the battlefield and the enemy doesn't know what to hit, and every goes super slow-mo. I'm making gelatin reactions(and wine gums made from actual wine), though, so skulls will be useful for that.
Zebras: Azizas gain big bonuses to every unarmed fighting skill, with high kicking and dodge skills. (Falling Caeser, anyone?)
Ibises could have longer, stronger legs (For kicking), or perhapes even a long beak. Lets go with the legs for now. 
Horned ones could have a hard, platelike skin. Why? Most of the names you picked out for these guys are mostly based of legendary Rhinos, and altho there skin is not actualy platelike, it would be interesting to fight apponents whos skin is tougher then there armor.
I have no idea what you mean by Falling Caeser. In fact, your post is the fifth result on Google for it, nestled among references to the Roman dude getting stabbed. The aziza I based the Zebras on are basically forest fairies, they're supposed to be adept with fire and bless hunters. If we could have specific reactions for particular castes, I'd let them do all existing smelting reactions with coal or wood as a reagent in place of coke or charcoal. Might make sense for the aziza civ as whole, now that I think about it. Hmm, Zecora fits the aziza description, and her fright night costume was Anansi themed, so maybe I'll make them webbers. I love webbers. Webbers are cool.
Well, only unicorns and karkadanns, really. Gorlaks are the little humanoids underground, and abadas are sort of horse/goat mixes. But giving karkadanns tougher hides makes sense. The abada can have the segmented horns. With two of them, that's going to be fun.
Interesting ideas for ibes. Ibes are mostly based on Thoth, Egyptian god of wisdom, architecture and stuff, so maybe I'll look at him for some more ideas.
Royal earth ponies you say?
Make them super fast (faster than every other pony/beast/megabeast/clown in the world, even the wonderbolt royalty), plus insane dodging skills and the inability to tire at all.
It'll be a good laugh when they rush off across them map in advance of their armies who cant keep up with them, or casually enter forts 3 seconds after being announced. 
Buffalo royalty: Massive boosts to their charge attack, skull extra protected and resistant to non-projectile attacks, while fur protects from projectiles/bashing.
Zebras: Obsidian-like hooves (sharper & tougher, since they rough it without magic most of the time, they probably adapted them to the environment for combat), longer neck that can hold additional special "armor rings" (making it more likely attackers will hit the neck with it's excellent protection, compared to the unprotected head)
Alternatively since Buffalo/Zebra dont really have royalty in the right sense (rank/royalty is gained by combat achievements/tribe benefit/wisdom than physical attributes), just have them be weapon-masters of sorts (spear/shield/archer/boomerang Zebras, archer/tomahawk/charger Buffalo's)
Making them noticeably faster than wonderbolts puts them at almost double normal speed. I suppose it's balanced out by most of the species being normal speed, though. I'll start by making them regular pegasus fast and giving them [NOEXERT] and [TRAPAVOID]. Oh, and when I get around to doing puddings I'll have to add craftable pudding hats. Might be an idea to add a bread hat reaction, too.
"Kebul McArmourer, are you sure a whip vine biscuit chanfron provides adequate protection?"
"Don't you worry, Mayor Mare, you'll be fine, and we'll have those hen's tooth crafts made when you get back."
Good ideas with the buffalo. I think their shear size makes them already resistant enough to projectiles, I'll make them a smidge bigger and add a velocity modifier to their barge attack, and I'll see if there's anything sensible I can do to differentiate plains and wood buffalo. Oh, and all royal buffalo will be mixes of ivory, white and cream like the current sacred flying buffalo as an allusion to the white buffalo legend. I'll probably make white eagle buffalo faster, and I might split the lower castes into bald and golden variants, since that's what they're based on. I've wondered about doing it for base buffalo, and since nobody seems to mind the karkadann/abada split I might as well.
Te he, surprised no one has made a Parasprite pony yet.
................. 
I've considered making parasprite and tank ponies. And I've been actively resisting the urge to make horse ponies, [DESCRIPTION:A horse-like equinoid. Huh.]. but all those seem slightly too silly even for this mod. Hmm, maybe tank buffalo....
Edit: Something that's been bugging me, should I make gems appear in various soil types? it seems a bit silly and will almost certainly play merry hell with neat farming, but it is in the show.
