Bing Wallpapers for Fall/Autumn

It's that time of year again. The nights are getting longer, the air cooler, and pumpkin spice is back in fashion. Unfortunately, Bing Wallpaper hasn't joined the party yet. When I go to Bing Wallpaper and look under seasonal themes, I see Spring and Summer, but no Fall yet. Does anyone know when the Fall/Autumn Bing wallpapers will be available? I know technically we are still in summer in the United States, but the Autumn vibe started last month with back to school. So, I know I might be rushing it, but what can I say? It's my favorite time of the year.