So I found when I get my shout cooldown to 100% it lets me summon Ice wolves/werewolves as much as I want. It doesn't really have a limit on it which means new summons won't cause the old ones to despawn.
Just wiped out Riften in literally less than a minute by walking in, popping on Beast Form and summoning around 20 Werewolves that just went crazy on the poor guards and townsfolk. Afterwards I decided to see if i could hit some sort of limit and just spammed the powers button. I got to around 122 before my Xbox crashed/froze.
So...yeah. Anyone else get this?