Logos are the evergreen images of a company. They tell people much more than the company's identity. You would need an impressive logo to attract people across all ages at all the times. One logo may contain a touch of different trends, but more importantly, it should represent the values of the company.
If you wish to be aware of the trends, just check how it goes in the real cases, like our design works on Behance
Make 2018 the year you change the game!