Whoops, didn't see that this was posted. Time to help with suggestions!

[quote=Xzayler]
Name of the lead Vygorn.
[/quote]
Since the Vygorns control most-if-not-all of the politics and military in the world, perhaps the head Vygorn is posing as a government official or influential businessman of sorts? If that's the case, then he'd probably have a human identity he's masquerading as, an actual alien name, and some sort of moniker for the main elemental group to call him by. As for actual titles... 

[quote=Xzayler]
How should the Elementals meet, or generally find out about the Vygorns? Explanation in Nature's Haven? Maybe an Old man lives there, a protector, master of all elements who can teach the new Elementals?
[/quote]
I like the idea of visions, actually. Maybe Nature could, as part of giving the Elementals their powers, give them a vision telling them to go to Nature's Haven, and then, once they're there, ultimately explain the rest of the plot to them. 

[quote=Xzayler]
How did/do the Elementals acquire their pets and items? 
[/quote]
Pets could be a part of the abilities granted by nature. Upon receiving their powers (or when visiting Nature's Haven), the Elementals could gain the ability to summon them, kind of like a familiar.

[quote=Xzayler]
Should pets be a thing at all?
[/quote]
Depends how much everyone wants to have a pet. To be honest, I like the idea of them being familiars working with Nature to guide the Elementals on their way, but how useful they actually wind up being won't be apparent until the RP starts, unfortunately.

[quote=Xzayler]
More Vygorn powers!
[/quote]
Here's what I could think of: 
[list]
[*] [b]Pollution Control[/b] - Vygorns are capable of bending the pollution and grime around them as though it were an element. This can come in a variety of forms, from dousing a battlefield with acid rain to flooding the streets with a wave of oozing sludge. Naturally, they cannot [i]make[/i] the pollution they want to control (that's the humans job, after all), but can amass and stockpile these destructive materials for later use. [/*]
[*] [b]Garbage Animation[/b] - Vygorns are capable of causing trash and other masses of unusuable or contaminated objects to merge into various creatures and beasts, which can be used for a variety of sinister purposes. However, they cannot control any trash that just happens to be lying around; to use this ability, Vygorns must process the objects they wish to use in advance with specific energies and chemicals. This ability technically applies to non-trash objects (such as usable appliances and furniture), but like trash objects, these things need to be prepared in advance. [/*]
[*] [b]Instability[/b] - For admins and the Big Bad - High-ranking Vygorns are capable of causing the objects around them to become molecular-ly unstable, resulting in random chemical reactions and destructive explosions. Since the actual effect of this instability is largely random, it has the potential to backfire against Vygorn forces, and as such, is only used in controlled environments or desperate situations. [/*]
[/list]