a harbinger of things to come

a harbinger of things to come

Something that is indicative of what will happen or become popular in the future. I think this trend is a harbinger of things to come, but there's no way to know for sure.
See also: come, harbinger, of, thing
Farlex Dictionary of Idioms.

harbinger of things to come

 and portent of things to come; sign of things to come
a sample of the events that are to occur in the future. The first cuts in our budget are a harbinger of things to come. Today's visit from the auditors is a portent of things to come.
See also: come, harbinger, of, thing
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • harbinger
  • harbinger of things to come
  • portent
  • a portent of things to come
  • be the shape of things to come
  • a sign of things to come
  • a straw will show which way the wind blows
  • he who gives fair words feeds you with an empty spoon
  • feel out of things
  • say a lot about (something)