Looks like something new happend at least...
More info can be found on the diablo reddit page:
Screenshot of the full backdrop:
People on diablo reddit are saying that the last time the wallpaper was changed was for RoS...can anyone confirm this?
Edit: had to make pics as links weren't working
I have no physical proof but the background has been Westmarch since RoS was released
I just find it interesting that they are promoting the diablo bundle on the german main splash page right before blizzcon...is d3 new to Germany or something?
No it is not new, nor is this Bundle.
Whatever it may be, I hope it's something new and not adding to D3, we need a better engine!