Given the chaos and uncertainty wrought by the COVID-19 pandemic, trying to pin down the top fashion and beauty trends of a year hence feels as futile as trying to pick a living room wallpaper pattern while your house is on fire. But we tried anyway by surveying a range of L.A.-based designers, brand builders and retailers to find out what the luxury landscape might look like 12 to 18 months down the road. The general consensus? Although no one — not even the trend analysts who make their living forecasting such things — is exactly sure what the future of fashion looks like, what they agreed on is that,…