Since the Aurora is the cornerstone of TLD (without it there would have been no crash), I would love to see the Aurora offer a permanent benefit in the long run.
What if you could hunt all animals during Aurora...and not just wolves...but even rabbits are aggressive. By hunting when the Aurora is out, you get to obtain their glowing pelts...and with cured Aurora pelts in hand, you can craft gear that offers an even bigger benefit. Best of all, your gear has a green, luminescence glow from the Aurora. Craft your full set, and no animals will attack you at all unless the Aurora is out, and provided you're wearing Aurora gear in all slots, of course. This may make it harder to hunt, but Aurora gear provides permanent safety (outside of the normal Aurora crazy animal time). Also, with the glow, you can travel through caves, for example, without needing a light source...seeing as your gear has slight glow (think Pipboy from the fallout series..but maybe not as bright so it's not a complete substitute for a light source). This would make the game more compelling as well as marry with the story line "realism" of this scenario. Moreover...this could be how you eventually conquer the long dark in a world that's forever getting colder and darker. Just you...the glowing night hunter...trying to survive.