It would be impossible for a B2B ecommerce store to try all of the new trends in an efficient manner. Instead, evaluate the trends as they come and see if they're right for your business and whether or not they increase ecommerce sales and drive customer loyalty.  Make an effort to stay up to date with industry reports and data to help evaluate new trends. Assess your customers’ behavior and decide if an upcoming trend would align with what the numbers show.
Don't be afraid to ask for feedback from your B2B customers — they may give you a new idea. Finally, take a look at what your competition is doing and how it's working for them.