Jeleva Commander

[Kickass86]

When Jeleva enters the battlefield and card are exiled with her and she returns to the command zone, when you cast her again are the cards that have already been exiled still part of her available pool?

[Coffee Vampire]

Even though she is your commander and her damage is tracked as if she is the same creature, as far as her ability is concerned she is a new creature.

This means that he card pool is restricted to the cards that she has exiled "this time around".

Exactly right. Here is the ruling in case anyone wants it:

400.7.: An object that moves from one zone to another becomes a new object with no memory of, or relation to, its previous existence. There are eight exceptions to this rule: