As you can see 2019 has come to an end and the trends of 2020 are on the rise and some of the vintage trends may also come back.
Peplum-style tops could be pretty popular in the spring.

Peplum tops would be all over the spring season. Peplum would be available in different types of feathers and different fabrics. They will be in fashion for the spring season but it can get extended till the summer season.
Stripes will be in the fashion too, all straps from horizontal and vertical.

Leather will be in every section of clothing too from shorts too long coats.

Leather will also make an appearance in just about every form of clothing and they would be available in different and vibrant colors.
Puffed sleeves will also be on the trending list as they have been in previous years but in different styles, designs, and structures.

In 2020 we will go back to the 1970s trends.
Designs from the 70s will come back as we are seeing a few signs in the winter-autumn with colors used like mustard and dark brown while in fabrics, corduroy is used clothes. Designs like flared hems, broad lapels and double-breasted styles will come back in 2020 from the 70s trending section.
Deconstructed suits are also here to stay for 2020.

Deconstructed suits were in fashion and they will continue to stay in fashion for a pretty long time and you might even see them in red carpets. There might be a probability that you will see suits and jackets worn without bottoms and suits styled with crop top and bras. In spring season you will see a lot of different fashion styles like a three-piece suit with some shorts and a bra instead of a blouse.
Colors like neon will be seen a lot this year.

Designers will be adding bright colors in the spring sections. We will be seeing a lot of neon colors mixed up with a lot of neutral colors and colors like black will not be in the fashion spotlight.
Jewelry trends of 2019 will stay in 2020

Hoops and collar necklaces will be all over in 2020 and will be available in a lot of different shapes and sizes.
Spring will be filled with crocheted products.

There will be a lot of crocheted products from the 70s fashion which has products like floral crochet, you might be seeing these products paired with a light dress and even denim.
Polka-dot prints will be in 2020.

In 2019 we have seen leopard prints but in 2020 there are high chances of it getting replaced by polka dots. The majority of feminine dresses will be seen covered in polka dots with some bold colors. In the case of shoes, loafers will continue to be in fashion for this year but you can see a lot of variation in styles. Other shoes from sleek styles to chunky shoes all will be in shops.