FThe future of business

The definite article is not optional here, especially in formal business English

The author of the article presenteds the ideas of futurologists in the field of future market trends.

Unless the article is only of historical interest, it's best to use the present here.

A futurologist only deals with the future, so "future" market trends is a bit redundant!

It means that mass marketing is outdated, - today's trend is an individual approach.

Commas separate different parts of the same idea while a hyphen introduces a new idea. If you can replace the comma with "while", a hyphen is usually better.

Secondly, marketers will focus on the needs of both the old and parentsparents and the elderly.

The elderly is more respectful and formal in a business context. Placing parents before elderly feels more idiomatic - young to old. Just a random quirk of the language.

Smart gadgets and services will become another trend, because modern people often lack time for their household routinechores.

Chores emphasises that the routines are a bit boring and tiresome.

According to these trends, I can namepredict some products and services of the future.

Nothing wrong with your English, but I feel this is better style.

For example, retirement homes for cats and dogs, snacks to combat depression, and clothing with an in-built massage facility as specific consumer requests.

Again a style point - I don't feel the last clause adds anything of value.

Products for calmhelping parents with stress will also become especially popular.

Again a style point - calming isn't quite right here.

For example, pProducts aimed at children’s health and diet will be a major growth area.

Style again - you announced some time ago that these are examples - no need to repeat that here...

For instance, intelligent refrigerators, smart cookers, delivery services and etc .¶
And from my point of viewin my opinion, by the end of next year, electric cars are about to becomewill become increasingly common

Etc stands on its own - no need for "and"
Opinion or judgement sounds more professional that point of view.

Let's look at some of them ¶
¶
F,¶
¶
first of all, the needs of consumers are becoming more personalized.

Future of bBusiness

Let's look at some of them ¶
.¶
¶
First of all, the needs of consumers are becoming more personalized.

It means that mass marketing is outdated, today's trend is utilising / having / using an individual approach.

Secondly, marketers will focus on the needs of both the oelderly and parents.

Elderly is a more formal and appropriate term for this context.

Smart gadgets and services will also become another trend, because in modern society, people often lack time for household routines.

And finally, new technologiesy.

Technology is also used as a plural term rather than technologies.

People are increasingly using online food deliveries, and online services to pay bills, buy tickets, and study.

According to these trends, I can nameould possibly guess some products and services of the future.

My edits help the sentence to sound more natural.

For example,: retirement homes for cats and dogs, snacks to combat depression, and clothing with an in-built massage facility as specific consumer requests.

Products for calmassisting parents will also become especially popular.

For example,Such as products aimed at children’s health and diet wills - these could be a major area of growth area.

Exchange 'for example' for 'such as' because you said 'for example' before (reducing repetition).

As for new technologiesy, products in this area will become increasingly popular.

For instance, intelligent refrigerators, smart cookers, delivery services and etc ¶
And f, etc.¶
From my point of view, by the end of next year, electric cars are about towill become more common.

Although it's not strictly incorrect, I was always taught never to start a sentence with 'and' because it's a conjunction.