I thought Pack Outcast was Human and Shifter, so I don't think Genasi Pack Outcast will fly, at least, not RAW, and not in CB.
Initiate of the Old Faith will work, if you are a Str/Wis Warden, rather than Str/Con.
You can just simulate it with fluff really. You're the perfect class for it. Describe your Forms as being hybrid wolf like. With Form of the Winter's Herald, you take on the aspects of a winter wolf. With Form of the Stone Sentinel, you gain similar regenerative powers to those of a werewolf. Even your feats can be refluffed this way. If you have Primordial Surge, describe the temporary hit points as a result of gaining a more feral appearance. If you have Barbarian Multiclass, when you use the daily +2 damage, you transform into a more vicious version of yourself. Heck, you can even pretend item powers enhance this aspect of you. Have Catstep boots? They just became Wolf Pounce transformation. Have Ornament of Alertness? That just became Ornament of Wolf Senses.
Basically anything that gives you bonus to damage, regeneration, temporary hit points, bonus to a relevant skill, or even low-light vision, can be refluffed.