https://creativemarket.com/blog/10-illustration-trends-for-2020?utm_source=cm-popular-products-email&utm_medium=email&utm_campaign=pp-ti-01-23-20

3D Suprematism
Retro Futurism
Neon Illustrations: Cyberpunk Colors
Isometric Illustrations
Illustrations in UI: Characters (Animated characters and elements in the user interface design create a micro-interaction between user and character. The use of textures will also make illustrations look more lively.)
Simplified illustrations: Flat Color and Limited Palette
Line Art & Minimalism
Paper Cut-Out Collages: Illustration and Photography