Diablo 3 - Tyrael losing his Wings?

Diii.net noticed this transformation to the D3 site, speculation from playable character to the new Diablo is away.

This could be an indicator of upcoming content additions or just a small graphics update but the “wings” of Tyrael on the official Diablo 3 site have transformed from elegant white “tentacles” to fiery, smoky tendrils. Seeing as how the Diablo 3 logo got some pulsating smoke emanating from behind it, it could very well just be a web graphics update, but it’s still interesting to speculate if it’s “just” that or possibly a major change coming up…