"Next fad" refers to the upcoming trend or popular craze that will gain widespread popularity for a period of time before eventually fading out. Full definition
In a rush to get the next fad product out, some have arrived with a stack of unfavourable ingredients that lend themselves more to preserving shelf life than promoting health, so reading labels is a must. (thetoleranttable.com)
The next fad will be the amazing new line of vulva wigs you can buy at Target.» (themilkmeg.com)
Lemonade - lookalike beer is the next fad that could sweep the States, if American brewers have their way. (newscientist.com)