Will the 2020s be flashy, wacky like the 80s and 00s?

I hope so anything is better than the soulless, artificial, boring 2010s

I think it's really possible, though I wouldn't count on it. Whenever I attempt to trend forecast, I always look to what way the pendulum is going to swing. There's been a whole lot of neutral, faux natural/industrial, inoffensive, etc. which I think will ironically will look bad at some point within this decade. This was intentionally designed to not date poorly, and I don't think it will as badly as many designs from the past have, so what I'm predicting is that it will start to look cheap. I have been seeing neon pastels, fluid designs as well as geometric features, more attractive natural components such as crystals and flowers, return of granny and overall maximalism with some curated clutter take off; still seeing what will stick. I think we'll be seeing some femininity in interiors again. Unfortunately, aside from clothing, I don't think there's a lot of resources being allocated to revamping aesthetics right now, not as there were in the 70's through 00's. Therefore it may take time for the past decade to date than those prior.