Thanks for all the feed back and suggestions.
Here is the general write up I think I am going for. Any class that gets an animal companion or a familiar will use its tribe's animal. (There will be more than just wolf-riders.)
No sending because I am going to keep psionics to a minimum in my game but I think I will grant some form of "familiar-esqe" type communication via a Wild Elf Paragon class.
WILD ELVEN RACIAL TRAITS
• +2 Dexterity, –2 Intelligence: wild Elves retain their racial gracefulness but do not place a premium on intellectual pursuits.
• Small-size: As Small creatures, wild elves gain a +1 size bonus to Armor Class, a +1 size bonus on attack rolls, and a +4 size bonus on Hide checks, but they must use smaller weapons than humans use, and their lifting and carrying limits are three-quarters of those of Medium-size characters.
• Wild Elven base speed is 20 feet.
• Low-light Vision: Elves can see twice as far as a human in starlight, moonlight, torchlight, and similar conditions of poor illumination. They retain the ability to distinguish color and detail under these conditions.
• All Wild Elves are Proficient with shortsword, short spear and shortbow.
• +2 racial bonus on Perception and Search checks.
• +2 racial bonus on Knowledge (Nature) and Survival. These skills are always considered a class skill for wild elves.
• Animal companion: Any class a wild elf takes that affords a familiar special mount or animal companion will be of the same animal type as the wild elves tribe. This is a supernatural ability.
• Automatic Languages: Tribal Elven
• Bonus Languages: Elven (true), elvish, Barbaric (tribal), Goblin (tribal), Romish (regional).
• Favored Class: Ranger.